When to plant Astilbe in Pemiscot County County,
Pemiscot County County's 215-day season only supports one Astilbe planting per year. Sow between April 6 and April 20 for the best chance at full maturity before October 31.
When to Plant Astilbe in Pemiscot County, MO
Pemiscot County, Missouri gardeners: here's your June plan
Here's what deserves your attention in Pemiscot County, Missouri this month. Everything below is tailored to Zone 7b and timed around your local frost dates.
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Start astilbe under lights
Starting these indoors now means sturdy transplants ready the moment your soil warms up.
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Harvest astilbe as they ripen
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
July will be here before you know it — start on
- First harvests: astilbe
Astilbe (Astilbe x arendsii) is a premier perennial for shaded, moist gardens, producing feathery plume-like flower spikes in shades of pink, red, white, and lavender above deeply cut, ferny foliage. Originating in Asia and naturalized in shade gardens worldwide, astilbe thrives where many sun-lovers fail: under trees, beside water features, or in persistently moist woodland borders. The dried flower plumes remain attractive through fall and winter. Different cultivars extend the bloom season from early summer through early fall when several varieties are combined.
Pemiscot County, Missouri is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is October 31, giving you a growing season of approximately 215 days.
At an elevation of 553 feet, Pemiscot County receives approximately 38.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Astilbe during the growing season.
Pemiscot County Soil Profile
Soil Type
Silt Loam
Soil pH
5.3-6.7
Drainage
Well Drained
Astilbe 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 Pemiscot County
How your county's soil matches Astilbe's growing requirements.
Soil pH
Your soil pH (5.3–6.7) overlaps with Astilbe's range (6.0–8.0), though not a perfect match.
Soil Texture
The silt loam soil in Pemiscot County is excellent for Astilbe — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.1%). Annual compost additions will help Astilbe.
How to Plant Astilbe
Succession Planting Astilbe
Sow every 8 weeks. Last sowing by Jul 23 to harvest before frost.
Astilbe Water Budget
Monthly Watering Guide for Astilbe
Astilbe needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.
| Month | Astilbe Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.5" | 0" | ❄️ Dormant |
| Feb | — | 1.6" | 0" | ❄️ Dormant |
| Mar | 6.5" | 2.7" | 3.8" | 🚿 Regular watering |
| Apr | 6.5" | 3.5" | 3" | 💧 Light watering |
| May | 6.5" | 4.9" | 1.6" | 💧 Light watering |
| Jun | 6.5" | 4.7" | 1.8" | 💧 Light watering |
| Jul | 6.5" | 3.8" | 2.7" | 💧 Light watering |
| Aug | 6.5" | 4.7" | 1.8" | 💧 Light watering |
| Sep | 6.5" | 3.1" | 3.4" | 🚿 Regular watering |
| Oct | 6.5" | 2.7" | 3.8" | 🚿 Regular watering |
| Nov | — | 2.9" | 0" | ❄️ Dormant |
| Dec | — | 2.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Oct in Pemiscot County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Astilbe 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.
Astilbe Planting Timeline — Pemiscot County, MO
Astilbe Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 26 | Jan 26 – Feb 9 |
| Transplant Outdoors | April 6 | Apr 6 – Apr 20 |
| Bloom | June 15 | Jun 15 – Aug 10 |
Plant 1.5" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors |
| March | — |
| April | Transplant Outdoors |
| May | — |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
1.5"/week · 2-3 times/week
📅 Days to Maturity
70–100 days
🧪 Soil pH
Needs 6–8 · Your soil: acceptable
🗺️ USDA Zone
Zone 7b
📆 Growing Season
215 days in Pemiscot County
Growing Tips for Astilbe in Pemiscot County
Direct sow Astilbe outdoors after March 30 in Pemiscot County when soil has warmed and frost danger has passed.
General growing tips
Plant bare-root crowns in spring as soon as the ground is workable, setting eyes 1–2 inches below soil level. Fall planting (Zones 4+) is equally effective. Consistent moisture is non-negotiable — astilbe will wilt and scorch in drought. Amend with generous compost to improve moisture retention. Partial shade (morning sun, afternoon shade) is ideal; deep shade reduces bloom but foliage remains. Fertilize lightly in spring with a balanced slow-release granular. Divide every 3–5 years in early spring as clumps become congested. Leave plumes standing through winter for ornamental interest and wildlife value. Year 2+ plants produce the fullest bloom spikes; first-year crowns may flower lightly or not at all.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Astilbe in Other Locations
Frequently Asked Questions
When should I plant Astilbe in Pemiscot County, MO?
Pemiscot County is in Zone 7b with an average last frost of March 30. Plan your Astilbe planting based on this frost date — see the calendar above for exact timing.
What planting zone is Pemiscot County, MO?
Pemiscot County, Missouri is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is October 31.
When should I plant Astilbe in Pemiscot County County, ?
In Pemiscot County County, , plant Astilbe after the last frost (around March 30) and before the first frost (around October 31). Best results when soil holds above 50°F.
What growing zone is Pemiscot County County, for Astilbe?
Pemiscot County County sits in USDA Zone 7b. Astilbe grows reliably in zones 3a through 8b, so it's a good fit here.
Can Astilbe grow in Pemiscot County County's climate?
Yes — Astilbe grows well in Pemiscot County County's temperate climate. Pemiscot County County averages a 215-day frost-free season, with last frost around March 30 and first frost around October 31.
Your Pemiscot County Garden Planner — Free
A 22-page printable planner built for Pemiscot County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.