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When to plant Hostas in Boone County, AR

Boone County's short 205-day growing season means one Hostas planting between April 12 and April 26. No fall crop in Zone 7b.

When to Plant Hostas in Boone County, AR

Boone County, Arkansas Zone 7b August

August in the garden — Boone County, Arkansas

Welcome to August in Zone 7b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 5
Avg. first frost October 27
Soil temp (4") 81°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Pick hostas

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

A few tasks this August that'll pay off in September
  • First harvests: hostas

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Hostas (Hosta spp.) are the undisputed kings of the shade garden, grown primarily for their spectacular mounded foliage in shades of deep green, blue-green, gold, and variegated combinations. Originating in East Asia (Japan, China, Korea), hostas form dense, long-lived clumps that reliably return year after year with minimal care. In summer, tall scapes of lavender or white tubular flowers rise above the foliage — some cultivars (notably H. plantaginea hybrids) are notably fragrant. Extremely adaptable in moist, well-drained soil with consistent shade to part shade.

Boone County, Arkansas is in USDA Zone 7b. The average last spring frost is April 5 and the first fall frost is October 27, giving you a growing season of approximately 205 days.

At an elevation of 844 feet, Boone County receives approximately 52.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Hostas during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Hostas root diseases.

Perennial Blooms in Summer Pollinator-friendly
Boone County, AR (Zone 7b) Long season
205 days
Last Spring Frost April 5
205 growing days
First Fall Frost October 27

Boone County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-7.1

Drainage

Well Drained

Hostas Planting Risk Windows

Early Start (70% safe) ✓ Fits season (3 days to spare)
Start indoors: Jan 17 Transplant: Apr 4 🌸 Bloom: Jun 13 – Oct 17
Recommended (50%) ✓ Fits season (2 days to spare)
Start indoors: Jan 25 Transplant: Apr 12 🌸 Bloom: Jun 21 – Oct 25
Safe Start (90%) ✓ Fits season (3 days to spare)
Start indoors: Feb 10 Transplant: Apr 28 🌸 Bloom: Jul 7 – Nov 10

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 Boone County

How your county's soil matches Hostas's growing requirements.

Soil pH

Your soil pH (5.2–7.1) overlaps with Hostas's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Boone County is excellent for Hostas — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Hostas.

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help Hostas.

How to Plant Hostas

1"
Planting Depth
24"
Between Plants
30"
Between Rows

Succession Planting Hostas

4
successive plantings in your 205-day season

Sow every 6.9 weeks. Last sowing by Jul 29 to harvest before frost.

Hostas Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Hostas

Hostas needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Hostas Needs Rainfall You Supplement Action
Jan 3.7" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 4.5" 0" ❄️ Dormant
Apr 4.3" 4.5" 0" ✅ Rainfall sufficient
May 4.3" 4.6" 0" ✅ Rainfall sufficient
Jun 4.3" 4.1" 0.2" 💧 Light watering
Jul 4.3" 6" 0" ✅ Rainfall sufficient
Aug 4.3" 4.3" 0" ✅ Rainfall sufficient
Sep 4.3" 4.5" 0" ✅ Rainfall sufficient
Oct 4.3" 2.9" 1.4" 💧 Light watering
Nov 3.8" 0" ❄️ Dormant
Dec 4.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Boone County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Hostas 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.

Hostas needs ~1,312 GDD — county provides 3,587 GDD Excellent fit

Hostas Planting Timeline — Boone County, AR

Hostas Planting Calendar

Activity When Date Range
Start Indoors January 25 Jan 25 – Feb 8
Transplant Outdoors April 12 Apr 12 – Apr 26
Bloom June 21 Jun 21 – Oct 25

Plant 1" deep · 24" apart · Rows 30" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors
March
April Transplant Outdoors
May
June Bloom
July Bloom
August Bloom
September Bloom
October Bloom
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

205 days in Boone County

Growing Tips for Hostas in Boone County

Direct sow Hostas outdoors after April 05 in Boone County when soil has warmed and frost danger has passed.

General growing tips

Plant bare-root crowns or divisions in early spring just as new growth emerges, or in fall at least 6 weeks before hard freeze. Choose a site with morning sun and afternoon shade in Zones 6+; deeper shade is acceptable but reduces vigor and bloom. Keep consistently moist but never waterlogged. Apply a 2–3 inch mulch layer to conserve moisture and suppress weeds. Slugs are the primary pest — use iron phosphate bait if damage is significant. Deer will browse hostas heavily in most regions; protect with fencing or repellents. Divide every 3–5 years in spring to rejuvenate. Fall planting (Zones 4+) is equally effective as spring planting when soil stays workable. Year 2+ plants reach full size and flower most reliably; first-year divisions may produce limited flower spikes.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Hostas in Boone County, AR?

Boone County is in Zone 7b with an average last frost of April 5. Plan your Hostas planting based on this frost date — see the calendar above for exact timing.

What planting zone is Boone County, AR?

Boone County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is April 5 and first fall frost is October 27.

When should I plant Hostas in Boone County, AR?

In Boone County, AR, plant Hostas after the last frost (around April 5) and before the first frost (around October 27). Best results when soil holds above 50°F.

What growing zone is Boone County, AR for Hostas?

Boone County sits in USDA Zone 7b. Hostas grows reliably in zones 3a through 9a, so it's a good fit here.

Can Hostas grow in Boone County's climate?

Yes — Hostas grows well in Boone County's temperate climate. Boone County averages a 205-day frost-free season, with last frost around April 5 and first frost around October 27.

🌱

Your Boone County Garden Planner — Free

A 22-page printable planner built for Boone 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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Boone County, AR. Local conditions may vary. Last updated: August 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.