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When to plant Sedum (Stonecrop) in Gray County County,

Plant Sedum (Stonecrop) in Gray County County during the brief April 25–May 9 window. With 184 frost-free days, fall plantings can't mature before October 19.

When to Plant Sedum (Stonecrop) in Gray County, KS

Gray County, Kansas Zone 6b June

June in Gray County, Kansas — your action list

We've pulled the most time-sensitive tasks for Gray County, Kansas this June and put them front and centre. Tackle them in order.

Avg. last frost April 18
Avg. first frost October 19
Soil temp (4") 73°F
Watering High
Pest pressure High
Daylight 14.6 hrs
  1. Start sedum (stonecrop) indoors

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

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Sedum (Hylotelephium spectabile, formerly Sedum spectabile) is a supremely tough, drought-tolerant perennial prized for its late-season interest. The flat-topped clusters of starry flowers open pink in late summer and deepen to copper-red as temperatures cool, remaining attractive well into fall and providing seed heads that feed birds through winter. Succulent foliage emerges blue-green in spring, is handsome all season, and turns bronzy after frost. Remarkably adaptable — thrives in poor, gravelly, or sandy soils where other perennials struggle — and virtually maintenance-free once established.

Gray County, Kansas is in USDA Zone 6b. The average last spring frost is April 18 and the first fall frost is October 19, giving you a growing season of approximately 184 days.

At an elevation of 903 feet, Gray County receives approximately 30.6 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Sedum (Stonecrop) during the growing season.

Perennial Blooms in Fall Pollinator-friendly Deer-resistant Good for cutting
Gray County, KS (Zone 6b) Moderate season
184 days
Last Spring Frost April 18
184 growing days
First Fall Frost October 19

Gray County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.8

Drainage

Well Drained

Sedum (Stonecrop) Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Feb 10 Transplant: Apr 21 🌸 Bloom: Aug 11 – Nov 3
Recommended (50%) ✗ May not fit
Start indoors: Feb 14 Transplant: Apr 25 🌸 Bloom: Aug 15 – Nov 7
Safe Start (90%) ✗ May not fit
Start indoors: Feb 28 Transplant: May 9 🌸 Bloom: Aug 29 – Nov 21

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 Gray County

How your county's soil matches Sedum (Stonecrop)'s growing requirements.

Soil pH

Your soil pH (6.3–7.8) is more alkaline than Sedum (Stonecrop) prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Gray County is excellent for Sedum (Stonecrop) — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.5%). Annual compost additions will help Sedum (Stonecrop).

How to Plant Sedum (Stonecrop)

1"
Planting Depth
18"
Between Plants
24"
Between Rows

Succession Planting Sedum (Stonecrop)

3
successive plantings in your 184-day season

Sow every 6.9 weeks. Last sowing by Jul 21 to harvest before frost.

Sedum (Stonecrop) Water Budget

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

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Sedum (Stonecrop)

Sedum (Stonecrop) needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Sedum (Stonecrop) Needs Rainfall You Supplement Action
Jan 2" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 2.9" 0" ❄️ Dormant
Apr 2.2" 3.3" 0" ✅ Rainfall sufficient
May 2.2" 3.9" 0" ✅ Rainfall sufficient
Jun 2.2" 2" 0.2" 💧 Light watering
Jul 2.2" 2.9" 0" ✅ Rainfall sufficient
Aug 2.2" 3.1" 0" ✅ Rainfall sufficient
Sep 2.2" 2.4" 0" ✅ Rainfall sufficient
Oct 2.2" 2.9" 0" ✅ Rainfall sufficient
Nov 1.8" 0" ❄️ Dormant
Dec 1.5" 0" ❄️ Dormant

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

Sedum (Stonecrop) 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.

Sedum (Stonecrop) needs ~1,088 GDD — county provides 2,668 GDD Excellent fit

Sedum (Stonecrop) Planting Timeline — Gray County, KS

Sedum (Stonecrop) Planting Calendar

Activity When Date Range
Start Indoors February 14 Feb 14 – Feb 28
Transplant Outdoors April 25 Apr 25 – May 9
Bloom August 15 Aug 15 – Nov 7

Plant 1" deep · 18" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

184 days in Gray County

Growing Tips for Sedum (Stonecrop) in Gray County

Direct sow Sedum (Stonecrop) outdoors after April 18 in Gray County when soil has warmed and frost danger has passed.

General growing tips

Plant divisions or container plants in spring after frost danger passes, or in early fall. Excellent drainage is the primary requirement — upright border sedums will rot in wet, heavy soils over winter. Lean soil actually improves performance; avoid over-fertilizing which causes floppy stems. Tall cultivars (Autumn Joy, Matrona) may need light staking in rich soil. Divide every 3–4 years in spring when centers become sparse. Deadhead selectively — leaving seed heads through winter extends ornamental interest and feeds goldfinches. Very low water requirement once established. Year 2+ plants reach full clump size and peak bloom display.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sedum (Stonecrop) in Gray County, KS?

Gray County is in Zone 6b with an average last frost of April 18. Plan your Sedum (Stonecrop) planting based on this frost date — see the calendar above for exact timing.

What planting zone is Gray County, KS?

Gray County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 18 and first fall frost is October 19.

When should I plant Sedum (Stonecrop) in Gray County County, ?

In Gray County County, , plant Sedum (Stonecrop) after the last frost (around April 18) and before the first frost (around October 19). Best results when soil holds above 50°F.

What growing zone is Gray County County, for Sedum (Stonecrop)?

Gray County County sits in USDA Zone 6b. Sedum (Stonecrop) grows reliably in zones 3a through 10b, so it's a good fit here.

Can Sedum (Stonecrop) grow in Gray County County's climate?

Yes — Sedum (Stonecrop) grows well in Gray County County's temperate climate. Gray County County averages a 184-day frost-free season, with last frost around April 18 and first frost around October 19.

🌱

Your Gray County Garden Planner — Free

A 22-page printable planner built for Gray 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.

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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 Gray County, KS. Local conditions may vary. Last updated: June 2026.

Sources & credits

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