When to plant Roses in Valdez-Cordova County,
Valdez-Cordova County's 146-day season only supports one Roses planting per year. Sow between May 26 and June 9 for the best chance at full maturity before October 5.
When to Plant Roses in Valdez-Cordova, AK
What to do in June
June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Valdez-Cordova, Alaska.
July will be here before you know it — start on
- Starting indoors: roses
Roses (Rosa spp.) are the world's most beloved flowering shrubs, grown for centuries for their exquisite blooms, fragrance, and versatility. Modern repeat-blooming cultivars deliver continuous color from late spring through the first hard frost, while old garden roses typically offer a single magnificent spring flush. Hardy shrub roses such as the Knock Out® and Canadian Explorer series tolerate Zone 3–4 winters without protection. With correct siting (6+ hours of sun, good air circulation), disease- resistant varieties thrive with moderate maintenance.
Valdez-Cordova, Alaska is in USDA Zone 5b. The average last spring frost is May 12 and the first fall frost is October 5, giving you a growing season of approximately 146 days.
At an elevation of 2,888 feet, Valdez-Cordova receives approximately 38.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 66°F, so choose short-season varieties of Roses to ensure they mature before fall.
Valdez-Cordova Soil Profile
Soil Type
Silt Loam
Soil pH
5-6.8
Drainage
Well Drained
Roses Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Soil Compatibility in Valdez-Cordova
How your county's soil matches Roses's growing requirements.
Soil pH
Your soil pH (5.0–6.8) is more acidic than Roses prefers (6.0–6.5). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Valdez-Cordova is excellent for Roses — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Roses.
Organic Matter
Organic matter is excellent (6.2%) — Roses will thrive.
How to Plant Roses
Roses Water Budget
Monthly Watering Guide for Roses
Roses needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Roses Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.9" | 0" | ❄️ Dormant |
| Feb | — | 1.8" | 0" | ❄️ Dormant |
| Mar | — | 1.5" | 0" | ❄️ Dormant |
| Apr | — | 1.2" | 0" | ❄️ Dormant |
| May | 4.3" | 1.5" | 2.8" | 🚿 Regular watering |
| Jun | 4.3" | 2.9" | 1.4" | 💧 Light watering |
| Jul | 4.3" | 5.3" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 5.5" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 6" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 5.3" | 0" | ✅ Rainfall sufficient |
| Nov | — | 2.9" | 0" | ❄️ Dormant |
| Dec | — | 2.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Valdez-Cordova). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Roses Heat Requirements (GDD)
What are Growing Degree Days (GDD)?
Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.
Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.
Roses Planting Timeline — Valdez-Cordova, AK
Roses Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 3 | Mar 3 – Mar 17 |
| Transplant Outdoors | May 26 | May 26 – Jun 9 |
| Bloom | August 11 | Aug 11 – Nov 17 |
Plant 1.5" deep · 36" apart · Rows 48" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | — |
| May | Transplant Outdoors |
| June | Transplant Outdoors |
| July | — |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | Bloom |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Natural rainfall sufficient
📅 Days to Maturity
90–180 days
🧪 Soil pH
Needs 6–6.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 5b
📆 Growing Season
146 days in Valdez-Cordova
Growing Tips for Roses in Valdez-Cordova
Direct sow Roses outdoors after May 12 in Valdez-Cordova when soil has warmed and frost danger has passed.
Your 146.0-day growing season in Valdez-Cordova is tight for Roses (90.0-180.0 days to maturity). Start indoors and choose early-maturing varieties.
General growing tips
Plant bare-root roses in early spring as soon as soil is workable, or set container-grown plants from spring through early fall. Dig a wide, deep hole; amend with compost and a handful of bone meal. Set the graft union 1–2 inches below soil level in Zones 3–6 for winter protection, at soil level in Zones 7+. Water deeply twice weekly until established. Fertilize with a balanced rose food every 4–6 weeks during the growing season. Prune hybrid teas and grandifloras to outward-facing buds in early spring when forsythia blooms. Deadhead to encourage repeat bloom. Fall planting (Zones 5+) can improve establishment in subsequent years. Year 2+ plants deliver the fullest bloom display.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Roses in Other Locations
Frequently Asked Questions
When should I plant Roses in Valdez-Cordova, AK?
Valdez-Cordova is in Zone 5b with an average last frost of May 12. Plan your Roses planting based on this frost date — see the calendar above for exact timing.
What planting zone is Valdez-Cordova, AK?
Valdez-Cordova, Alaska is in USDA Hardiness Zone 5b. The average last spring frost is May 12 and first fall frost is October 5.
When should I plant Roses in Valdez-Cordova County, ?
In Valdez-Cordova County, , plant Roses after the last frost (around May 12) and before the first frost (around October 5). Best results when soil holds above 50°F.
What growing zone is Valdez-Cordova County, for Roses?
Valdez-Cordova County sits in USDA Zone 5b. Roses grows reliably in zones 3a through 10b, so it's a good fit here.
Can Roses grow in Valdez-Cordova County's climate?
Yes — Roses grows well in Valdez-Cordova County's temperate climate. Valdez-Cordova County averages a 146-day frost-free season, with last frost around May 12 and first frost around October 5.
Your Valdez-Cordova Garden Planner — Free
A 22-page printable planner built for Valdez-Cordova (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.