When to Plant Ranunculus in Lincoln County, WA
This month in Lincoln County, Washington
June is a pivotal month for Lincoln County, Washington gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Fire up the seed-starting tray: ranunculus
Your window is short. These crops want several weeks of indoor growth before they go outside.
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Start harvesting ranunculus
If you can't use it all right away, check the food-preservation section of your planner.
Coming up in July — start thinking about
- First harvests: ranunculus
Persian ranunculus (Ranunculus asiaticus) produces multi-petaled blooms that rival roses in intricacy and lushness, in a warm palette of reds, oranges, yellows, pinks, and whites. A cornerstone of the specialty cut flower industry, ranunculus produces long, strong stems ideal for bouquets and arrangements. As a cool-season corm, it performs best in the mild shoulder seasons — planted in fall in warm-winter zones, or in early spring where summers arrive quickly. The 'Elegance', 'Amandine', and 'Tecolote' strains are favorites for both home gardens and commercial growers.
Lincoln County, Washington is in USDA Zone 6b. The average last spring frost is May 19 and the first fall frost is September 26, giving you a growing season of approximately 130 days.
At an elevation of 2,955 feet, Lincoln County receives approximately 21.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Ranunculus during the growing season.
Lincoln County Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-6.6
Drainage
Well Drained
Ranunculus 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 Lincoln County
How your county's soil matches Ranunculus's growing requirements.
Soil pH
Your soil pH (5.5–6.6) overlaps with Ranunculus's range (6.0–6.5), though not a perfect match.
Soil Texture
The silt loam soil in Lincoln County is excellent for Ranunculus — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Ranunculus.
Organic Matter
Organic matter is excellent (4.3%) — Ranunculus will thrive.
How to Plant Ranunculus
Ranunculus Water Budget
Monthly Watering Guide for Ranunculus
Ranunculus needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Ranunculus Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 3.2" | 0" | ❄️ Dormant |
| Feb | — | 2.8" | 0" | ❄️ Dormant |
| Mar | — | 2.5" | 0" | ❄️ Dormant |
| Apr | — | 1.5" | 0" | ❄️ Dormant |
| May | 4.3" | 1.1" | 3.2" | 🚿 Regular watering |
| Jun | 4.3" | 1" | 3.3" | 🚿 Regular watering |
| Jul | 4.3" | 0.3" | 4" | 🚿 Regular watering |
| Aug | 4.3" | 0.5" | 3.8" | 🚿 Regular watering |
| Sep | 4.3" | 0.8" | 3.5" | 🚿 Regular watering |
| Oct | — | 1.6" | 0" | ❄️ Dormant |
| Nov | — | 3" | 0" | ❄️ Dormant |
| Dec | — | 3.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Sep in Lincoln County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Ranunculus 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.
Ranunculus Planting Timeline — Lincoln County, WA
Ranunculus Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 7 | Apr 7 – Apr 21 |
| Transplant Outdoors | May 19 | May 19 – Jun 2 |
| Bloom | June 23 | Jun 23 – Jul 21 |
Plant 2" deep · 6" apart · Rows 8" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Transplant Outdoors |
| June | Transplant Outdoors Bloom |
| July | Bloom |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · 1-2 times/week
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–6.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 6b
📆 Growing Season
130 days in Lincoln County
Growing Tips for Ranunculus in Lincoln County
Direct sow Ranunculus outdoors after May 19 in Lincoln County when soil has warmed and frost danger has passed.
Your 130.0-day growing season in Lincoln County is tight for Ranunculus (90.0-120.0 days to maturity). Start indoors and choose early-maturing varieties.
Lincoln County receives only 22" of rain annually. Ranunculus needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Pre-soak corms (which look like small octopus tentacles) in cool water for 2–4 hours before planting; do not over-soak. Plant with tentacles pointing downward, 1–2 inches deep and 6 inches apart. Ranunculus demand excellent drainage — they rot in soggy soil. In fall-planting zones (7+), plant October–November and allow to root through mild winter; blooms arrive in March–May. In zones 6, start corms indoors in late winter and transplant out after last frost for a late-spring bloom. Keep soil consistently moist but never waterlogged during growth. After foliage yellows (post-bloom), stop watering, let corms dry, lift them, and store in a cool dry place until replanting. In zones 8b–10b, corms can often be left in ground year-round.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Ranunculus in Other Locations
Frequently Asked Questions
When should I plant Ranunculus in Lincoln County, WA?
Lincoln County is in Zone 6b with an average last frost of May 19. Plan your Ranunculus planting based on this frost date — see the calendar above for exact timing.
What planting zone is Lincoln County, WA?
Lincoln County, Washington is in USDA Hardiness Zone 6b. The average last spring frost is May 19 and first fall frost is September 26.
Your Lincoln County Garden Planner — Free
A 22-page printable planner built for Lincoln County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.