Winterizing

Home Back About the ORS Best Roses ORS Calendar Resources Species Roses Garden Residents Articles

 

 

Winterizing your Roses

Irrigation Systems

 

2014 new balenciaga arena shoes Balenciaga Arena Low Top Balenciaga Arena Low Top Creased Leather Shoes 2014 Balenciaga Cotes Monochrome red replica Balenciaga Cotes Monochrome high top Shoes Balenciaga Cotes Monochrome Red Shoes Discount balenciaga Hologram-Panelled balenciaga Hologram Panelled High Top 2014 Balenciaga Hologram-Panelled black replica balenciaga Hologram-Panelled shoes review Super Perfect Balenciaga Cambure Panelled Pleated Leather 2014 Balenciaga Cambure Panelled Pleated black replica Balenciaga Pleated high top Shoes Balenciaga Arena White&Black On-foot Review 2014 replica balenciaga shoes on foot review newest replica balenciaga men shoes on-foot review 2014 new balenciaga arena shoes Review Black Beats by Dr. Dre Mixr DJ Headband Headphones by Dr. Dre Mixr Review DJ Headband Headphones by Dr. Dre Mixr Beats by Dr. Dre Mixr for DJs Giuseppe Zanotti High Top sneakers Black Suede Giuseppe Zanotti High Top Replica Men's Giuseppe Zanotti High Top Suede Spring 2014 Giuseppe Zanotti High Top Suede Men Shoes Giuseppe Zanotti Double Zipper High Top sneakers Fashion Mens GIUSEPPE ZANOTTI Metallic Blue discount Giuseppe Zanotti Double Zipper High Top Replica Men's Giuseppe Zanotti High Top Double Zipper Spring 2014 Giuseppe Zanotti Double Zipper Sneakers Mens GIUSEPPE ZANOTTI Brown Suede and neon orange Mens GIUSEPPE ZANOTTI Brown Double Zipper shoes Brown/neon orange Giuseppe Zanotti shoes discount Giuseppe Zanotti Croc White high top shoes review Giuseppe Zanotti Croc Double-Zip shoes Mens Giuseppe Zanotti Crocodile sneakers black Giuseppe Zanotti zipper sneakers Giuseppe Zanotti Black Velvet Leather High-top spring 2014 Giuseppe Zanotti High-top zipper shoes BUSCEMI 100MM Buscemi Birkin 18K shoes BUSCEMI Full Grain Italian leather High Top Shoes Coda neon green leather sneaker Gucci Neon green high top men shoes 2014Gucci Neon green high top men shoes discount Balenciaga white high top cheap balenciaga high white sneakers Balenciaga Arena Creased Navy Blue Balenciaga Arena Navy Blue men shoes rick owens for adidas 2014 spring collection rick owens x adidas runner review adidas x rick owens men shoes discount rick owens x adidas runner shoes White Giuseppe Zanotti High Top sneakers Replica Men's Giuseppe Zanotti High Top Suede Spring 2014 Giuseppe Zanotti High Top Suede Men Shoes cheap Giuseppe Zanotti High Top Suede men shoes super perfect Guiseppe Low Top Shoes Low giuseppe zanotti black sneakers Giuseppe Patent Low top sneakers in black Giuseppe Zanotti Side Zip Sneakers buscemi 100mm leather high-tops jon buscemi shoes buscemi spring 2014 for men buscemi 100mm birkin giuseppe zanotti sneakers unboxing giuseppe zanotti sneakers on feet giuseppe zanotti sneakers for men high-top giuseppe zanotti sneakers Balenciaga Arena navy blue men shoes Balenciaga Arena high top shoes review cheap balenciaga high navy blue sneakers Balenciaga Arena Creased Navy Blue Balenciaga white shoes white-yellow sole cheap balenciaga high white sneakers discount Balenciaga white high top Balenciaga Arena Creased white review cheap balenciaga pleated blue shoes Balenciaga Cambure Panelled Pleated Leather balenciaga Panelled Pleated High Top 2014 Balenciaga Pleated blue replica balenciaga Pleated red shoes review cheap balenciaga pleated Red shoes 2014 Balenciaga Pleated red replica Discount Pleated red balenciaga Cheap Balenciaga Arena Creased Leather Balenciaga Arena high top shoes discount Balenciaga Arena high top 4colors balenciaga arena creased men shoes balenciaga arena black replica 2014 new released balenciaga arena shoes Balenciaga Arena Creased Black Balenciaga Arena Black men shoes 2014 Balenciaga Cotes Monochrome Black replica discount Balenciaga Cotes Monochrome Shoes Balenciaga Cotes Monochrome high top Shoes Black Balenciaga Cotes Monochrome Shoes review Balenciaga Arena Low Top discount Balenciaga Arena Shoes Balenciaga Arena Low Top Creased Leather Shoes 2014 new mens Giuseppe Zanotti white sneakers 2014 fashion Giuseppe Zanotti croc high top shoes fashion Giuseppe Zanotti high top white shoes on sale Giuseppe Zanotti Croc White high top Lace up Giuseppe Zanotti High Top Black Leather Replica 2014 new mens Giuseppe Zanotti black sneakers 2014 fashion Giuseppe Zanotti Black Velvet Leather High-top Sneakers fashion Giuseppe Zanotti high top black shoes on sale Gucci Neon green Sneaker online review Coda neon green leather sneaker Gucci Neon green high top men shoes Gucci Neon green high top men sneakers Giuseppe Zanotti black high top replica Giuseppe Zanotti zipper high top sneakers review 2014 new mens Giuseppe Zanotti black sneakers higher quality Giuseppe Zanotti black sneakers cheap Balenciaga Arena Black shoes 2014 new balenciaga arena shoes Balenciaga Arena Low Top Balenciaga Arena Low Top Creased Leather Shoes fashion giuseppe zanotti black high-top shoes review 2014GIUSEPPE ZANOTTI zipper high top shoes GIUSEPPE ZANOTTI high top men shoes Giuseppe zanotti high top black leather sneakers Air Jordan XI Retro Space Jam Men Shoes review Authentic quality Air Jordan 11 Retro Space Jam Men Shoes Jordan XI Retro Space Jam review Gucci High-top White Shoes with Gucci Stripe fashion Gucci High-top White Sneakers online review Review Gucci High-top Lace-up White Shoes Balenciaga Arena white men shoes discount Balenciaga white high top Balenciaga Arena Creased white replica review review cheap Balenciaga Arena black shoes discount Balenciaga Arena Shoes review Balenciaga Arena Low Top Creased Leather Shoes 2014 replica balenciaga men shoes review review Balenciaga Arena Low Top fashion Giuseppe Zanotti zipper shoes spring 2014 Giuseppe Zanotti Low-top zipper shoes fashion Giuseppe Zanotti Double Zipper shoes Giuseppe Zanotti low-top sneakers Giuseppe Zanotti black low top replica spring 2014 Giuseppe Zanotti Low-top shoes black and white Giuseppe Zanotti low top mens Giuseppe Zanotti low top sneakers Giuseppe Zanotti low top zipper sneakers Zanotti Low-top zipper shoes new Giuseppe Zanotti black Low-top zipper shoes review Giuseppe Zanotti black low top sneakers 2014 Balenciaga Cotes Monochrome red replica Balenciaga Cotes Monochrome high top Shoes Review Balenciaga Cotes Monochrome Red Shoes Balenciaga Arena Low Top Creased Shoes discount Balenciaga Arena Shoes Review Balenciaga Arena Low Top 2014 new balenciaga arena shoes Review Balenciaga Arena White shoes 2014 replica balenciaga Arena review newest released adidas x rick owens runner high fashion adidas x rick owens shoes discount rick owens x adidas runner shoes Balenciaga Arena Navy Blue men shoes cheap balenciaga high white sneakers Balenciaga Arena Creased Navy Blue Super Perfect Balenciaga Pleated men shoes Balenciaga Pleated high top Shoes 2014 Balenciaga Cambure Panelled Pleated black replica 2014 replica balenciaga men shoes discount Balenciaga Arena Shoes On-foot Review On-foot Review cheap Balenciaga Arena shoes Beats by Dr. Dre Mixr for DJs Beats by Dr. Dre Mixr DJ Headband Headphones by Dr. Dre Mixr Balenciaga Hologram-Panelled high top Shoes 2014 Balenciaga Hologram-Panelled black replica Super Perfect Balenciaga Hologram-Panelled cheap Giuseppe Zanotti High Top Suede men shoes discount Giuseppe Zanotti High Top Zipper Spring 2014 Giuseppe Zanotti High Top Suede Men Shoes Fashion Mens GIUSEPPE ZANOTTI Metallic Blue cheap Giuseppe Zanotti High Top Suede men shoes Review Giuseppe Zanotti Double Zipper High Top sneakers 2014Gucci Neon green high top men shoes review Gucci leater high top sneaker green Gucci high top men shoes new Giuseppe Zanotti double zipper shoes online review Brown Suede Double Zipper High Top GIUSEPPE ZANOTTI Spring 2014 Giuseppe Zanotti High Top Sneakers discount Giuseppe Zanotti Croc White high top shoes Giuseppe Zanotti Croc White Double-Zip Mens Giuseppe Zanotti White high top shoes Fashion Side Zip Giuseppe Zanotti Sneakers Giuseppe Patent Low top sneakers in black Low giuseppe zanotti black sneakers Super Perfect Buscemi 100mm Birkin 18K BUSCEMI Full Grain Italian leather High Top Shoes cheap Buscemi Birkin 18K shoes Giuseppe Zanotti Black Velvet Leather High-top new Giuseppe Zanotti Black High-top zipper shoes spring 2014 Giuseppe Zanotti High-top zipper shoes cheap Giuseppe Zanotti High Top Suede men shoes Spring 2014 Giuseppe Zanotti High Top Suede Replica Spring 2014 Giuseppe Zanotti High Top Suede Men Shoes Replica Men's Giuseppe Zanotti High Top Suede newest replica high top creased balenciaga discount Balenciaga Arena Shoes 2014 new balenciaga arena shoes 2014 replica balenciaga review fashion giuseppe zanotti black high-top shoes review Giuseppe zanotti high top black leather sneakers 2014GIUSEPPE ZANOTTI zipper high top shoes discount Gucci High-top White Shoes review fashion Gucci High-top White Sneakers online review 2013 Gucci High-top White Shoes with Gucci Stripe fashion Authentic Air Jordan 11 Space Jam Men Shoes Authentic AJ11 Retro Space Jam Shoes review review Air Jordan 11 XI Retro Space Jam Men Shoes GIUSEPPE ZANOTTI Hi Top Black Leather London Men's Sneakers Giuseppe Zanotti black Grained Leather Sneakers Mens High Top Sneaker Black Giuseppe Zanotti With Chain Double-Zip Extra White Balenciaga Arena High Sneakers Balenciaga Arena High Trainers where to buy balenciaga fake arena sneakers Super Air Jordan 6 VI Retro Oreo White Black Carmine Men's Shoes Air Jordan 6 VI Retro Oreo air jordan 6 carmine men shoes Balenciaga high top hologram shoes Balenciaga Hologram-Panelled High Top Men Sneakers high top Balenciaga Hologram shoes Balenciaga panelled men shoes Balenciaga Cambure Panelled Pleated Leather balenciaga Pleated blue shoes review review balenciaga Pleated blue shoes Balenciaga Cambure Panelled Pleated Leather cheap balenciaga pleated Red shoes 2014 Balenciaga Pleated red replica discount Balenciaga Arena high top 2014 new released balenciaga arena shoes Balenciaga Arena high top shoes Balenciaga Arena Creased Black shoes discount Balenciaga Black high top Balenciaga Arena high top shoes fashion balenciaga new shoes white 2014 Balenciaga Arena white shoes cheap balenciaga high white sneakers cheap balenciaga high navy blue sneakers Balenciaga Arena navy blue men shoes 2014 Balenciaga Arena Navy blue shoes fashion balenciaga new shoes white Balenciaga Arena Creased Leather 2014 Balenciaga Arena white shoes 2014 Balenciaga Cambure Panelled Pleated black replica balenciaga Panelled Pleated High Top Balenciaga Pleated high top Shoes Black balenciaga Sneakers review Balenciaga Arena Low Top Creased Leather Shoes Balenciaga Arena Low Top Balenciaga Arena Low Top Balenciaga Arena Low Top Creased Leather Shoes White balenciaga Sneakers review GIUSEPPE ZANOTTI White crocodile effect hi-top trainers kanye west white Crocodile giuseppe zanotti shoes Giuseppe Zanotti High Top white croc Sneakers Buckled Double Zip Giuseppe Zanotti Black Velvet Gold Bar Sneakers Giuseppe Zanotti Black Velvet Leather High-top sneakers Giuseppe Zanotti Men Black Velvet Buckled Veronica Sneakers Rick Owens x Adidas Rick Owens shoes adidas Rick Owens shoes Rick Owens x Adidas balenciaga panelled balenciaga hologram balenciaga sneakers arena balenciaga arena high sneakers balenciaga high top mens balenciaga sneakers balenciaga sneakers for men balenciaga sneakers for sale men giuseppe zanotti shoes Giuseppe calfskin leather shoes men giuseppe zanotti sneakers Balenciaga Paneled High Top Sneakers balenciaga hologram high top clear balenciaga men sneakers hologram balenciaga shoes balenciaga hologram trainers balenciaga sneakers men balenciaga hologram low top balenciaga men shoes balenciaga panelled leather sneakers Balenciaga Hologram Paneled High Balenciaga sneakers High Balenciaga's panelled sneakers Balenciaga Cotes Monochrome RED balenciaga pleated red balenciaga pleated sneaker buscemi 125mm shoes Jon buscemi 125mm high top sneakers buscemi 2014 125mm red sneakers Maison Martin Marginal sneakers MMM men sneakers Marginal black leather line 22 men shoes BEST SNEAKER QUALITY Buscemi 125mm 2014 buscemi 125mm high top sneakers Men buscemi 125mm shoes perfectkickz Maison Martin Margiela shoes Maison Martin Margiela white patern leather sneakers MMM line 22 high top sneakers perfectkickz unboxing Maison Martin Margiela shoes unboxing buscemi 125mm shoes unboxing

Ask three different rosarians how to winterize, and you'll get six different answers.

Some don't winterize at all.  Others go all the way - pruning back the roses to waist height, stripping off all the leaves, and burying the bottom of the plant with hauled-in mulch.  If you don't winterize at all, some years you'll lose a lot of roses.  If you go the whole nine yards, some years you'll still lose a lot of roses.  In mild winters those who don't winterize win, while those who do can lose roses to rot under all that warm wet mulch.  In cold winters those who don't winterize can lose everything, while those who do shouldn't lose more than top growth, but no guarantees either way.  Some (like me!) wait to see if it's going to get cold enough, and then end up winterizing in the dark after work as temperatures plummet, generally in sleet or snow. 

Why Winterize?

Modern, repeat-blooming roses are not hardy to extreme cold.  Garden roses are complex hybrids of numerous species from all over the Northern Hemisphere, and the repeat-blooming genes nearly all come from semi-tropical, evergreen species from China.  They can take frost, but not extreme cold.  My own experience is that most modern roses can take temperatures down to about 15?F (that's - 9?C) before sustaining freeze damage.

Species roses and once-blooming roses should not need winterizing, unless you're growing semi-tropical species in cold-winter areas.  Some modern repeat-blooming roses were hybridized specifically for cold tolerance:  Buck roses from Iowa, and Parkland and Explorer roses from Canada.  Most rugosa hybrids are pretty cold tolerant too.  All the European, once-blooming old garden roses are cold hardy:  the albas, damasks, gallicas, centifolias.

Other classes of roses are notorious for being tender here, like the Noisettes, semi-tropical roses hybridized in coastal South Carolina.  Tea roses have a reputation for tenderness that is not entirely warranted - it's lack of summer heat that gets them here, not winter cold.  Climbers and tree roses can suffer physical damage from snow load or high winds if not sufficiently supported, and the top of a tree rose is particularly vulnerable to freezing, being so far off the ground.

Frost and snow do not hurt roses.  What hurts roses is extreme cold, particularly when combined with a dry wind.  Wet snow and thick ice can cause breakage from its weight but snow is an insulator, it does not cause freeze damage.

When to Winterize?

While modern, repeat-blooming roses do not go dormant, they will harden off when exposed to cold temperatures.  This process prevents the water in the cells from freezing and bursting the cell walls - the cause of winter damage.  Winterizing too early prevents hardening off, and the roses will suffer winter damage despite the protection you gave them.  If possible, wait until the roses have experienced at least one good solid frost.  Some years that won't be possible, as we often get sustained mild temperatures in the 40s F and then a sudden plummet to the teens in just a couple of days.  It's best to watch the weather rather than insisting on a set schedule.  Some years the cold will come in October, but most years not til December or January, and some years not at all.

I have noticed, reading rose society newsletters from around the country, that in truly cold winter climates, people tend to winterize much later than we do!  For instance, the Greater Milwaukee (WI) Rose Society recommends waiting until there have been 'a few' hard frosts - this in their November newsletter!  And the Utah Rose Society recommends waiting until the ground is frozen, IF you're going to winterize at all(!).

How to Winterize?

First, plant your grafted roses with the graft union just below the soil surface.  Soil is the best insulator, and the graft union is the most critical part of a grafted plant.  If that graft union dies, then all you'll have is the rootstock sprouting up next spring.  Own-root roses do not have to be planted deep.  In mild winters this will be the only winterizing truly necessary.

Second, pile some kind of insulating material over and around the bottom of the plant.  If you like you can prune the top down a bit and strip off the leaves first, this does make the job easier, but is not necessary.  Ground bark, compost, mushroom compost, wood chips, leaves, and soil are all good materials.  Don't scrape up soil from around the roses though, as this just exposes the roots to cold and dry.  You'll probably hear a lot about how certain leaves should never be used as they rot or skew the pH - don't bother.  Use whatever leaves you have at hand, they're all good unless you've got walnut or eucalyptus, and those trees are rare here.  If you do use leaves use a lot as they will decompose and settle over the winter.  I like to add a cover of Douglas-fir branchlets over the cone of leaves to help hold them in place.

Prevailing winds are from the southwest, but the coldest, most damaging weather usually features northeast winds, so pay special attention to that side of your roses when mulching.  Make sure you have good cover over, under, and between all the canes for 6-8" from the soil surface.  Gaps will let in the cold.  You want to keep the extreme cold from getting to the base of the plant.  In cold winters, your rose canes will probably die back to the level of the protection so heap it high.

Tree roses are best protected with pipe insulating foam on the trunk, soil piled at the base, and the top graft wrapped in bubble wrap or some other nonabsorbent insulation.  Make sure the whole thing is securely staked, too.  Some people put christmas lights on their wrapped-up tree roses for decoration.

Climbers just plain have to be cane-hardy here, and most are, with the exception of the Noisettes and Hybrid Giganteas.  You should insulate the base of the plant just like any other rose, and then make sure the canes are tied up securely.  Then hope for the best.  Usually that's enough and you don't lose much top growth.

Potted roses need the root area protected as well as the top.  Sink the pot into the ground, the compost pile, or a plastic crate filled with wood shavings or leaves.  Many people like to move potted roses into shelter for the winter but you have to have an unheated, lighted shelter - unheated garage or shed with windows, or an unheated hoophouse or greenhouse.  Don't bring them into the heated house, that's too warm and dry and dark for them.  They'll try to continue to grow but the inside of your house is too dark and dry for healthy rose growth.  If you use extruded-foam insulated pots then you don't have to worry about the roots, just leave them in place.

When to remove it all?

March, usually.  When the forsythia bloom.  Be gentle so you don't break off new growth.

Here's Aloha, wearing her leaves and Doug-fir skirt for winter:

 

Irrigation Systems


Drip systems (from the DripWorks website): the components most susceptible to winter damage are timers, electric valves, filters, regulators and fittings. Timers and filter-regulator assemblies should be brought in and stored in a warm, dry place for the winter months. The parts of the drip system left outside should be capped to prevent bugs or dirt from getting in. A female hose plug can be handy for this purpose. Be sure to remove the battery from any battery-operated timer to prevent corrosion of the battery compartment. Fittings (female hose beginnings, elbows, T's, etc.) can be left in place on the system as long as they have been cleared of standing water that can freeze and cause cracking.

The easiest way to clear your tubing and fittings of standing water is by opening the end (or ends if you have multiple lines) of the line and blowing compressed air through the system. If you don't have a compressor readily available, gravity can be your friend in draining the system. You can elevate a middle portion of the tubing so that any water in the system drains to the lowest point, where you have opened up the line. You may need to work your way around your system to work the water out the open ends. Another helpful part in draining your system is a flush valve.  A flush valve (or valves) can be installed at the low point (or points) in your system. The flush valve works by opening up when the water pressure in the line drops below about 2.5 PSI.

Once your tubing and fittings have been cleared of standing water, they are safe to leave outside through the winter. Make sure you close the ends of the lines and use female hose plugs at the line beginning where you have removed the filter-regulator assembly. This will prevent insects from crawling in and will ensure that the lines stay dry. If you cover your garden beds with mulch or straw to prevent winter heaving, be sure to mark where your tubing is to prevent accidentally cutting though it with a spade or pitchfork come spring!

Soaker hoses:  I leave these in place, undrained; all I do is remove the end caps to allow water to drain out on its own.

PVC systems: since PVC is a rigid material, these systems are somewhat more susceptible to shattering than the flexible PE plastic used for drip systems, or the recycled tire rubber used in soaker hoses.  Pipes should be installed at least 12" below the surface for winter protection.  Your PVC system should also have its own shutoff valve which allows you to turn off the water to the irrigation system without having to shut off water to the house.  Use it when winterizing.  Underground valves are generally installed in a valve box for accessibility, which leaves them somewhat susceptible to freezing.  Once you've shut off the water to the system, manually open all the control valves to allow them to drain, then pack the valve box with bubble wrap or other nonabsorbent insulation.  Ditto for any pressure regulators or filters.  These are expensive and not easy to replace; you don't want them shattering just because not all the water drained out.

 

?/font> 2008,  The Olympia Rose Society . This page last modified:  Saturday, November 12, 2011