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When to plant Bleeding Hearts in Huron County County,

Plant Bleeding Hearts in Huron County County, between May 16 and May 30 — the only viable window. Zone 6a's short season (154 frost-free days) rules out a fall crop.

When to Plant Bleeding Hearts in Huron County, MI

Huron County, Michigan Zone 6a June

June in Huron County, Michigan — your action list

Your Huron County, Michigan garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.

Avg. last frost May 9
Avg. first frost October 10
Soil temp (4") 70°F
Watering Low
Pest pressure High
Daylight 15.3 hrs
Get ahead of July
  • Starting indoors: bleeding hearts
  • First harvests: bleeding hearts

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Bleeding Hearts (Lamprocapnos spectabilis) are elegant woodland perennials producing arching stems hung with distinctive heart-shaped pink or white flowers with protruding inner petals — the "drops" beneath each heart. A beloved heirloom perennial from Asia, bleeding hearts emerge vigorously in spring, bloom prolifically for 4–6 weeks, and then go dormant in summer heat — a natural die-back that is entirely normal. The dormancy gap should be planned for by interplanting with summer-emerging hostas, ferns, or impatiens. Fringed bleeding heart (Dicentra eximia), a US native, has a longer bloom season and does not go fully dormant. All parts are toxic if ingested.

Huron County, Michigan is in USDA Zone 6a. The average last spring frost is May 9 and the first fall frost is October 10, giving you a growing season of approximately 154 days.

At an elevation of 1,170 feet, Huron County receives approximately 41.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Bleeding Hearts to ensure they mature before fall.

Perennial Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting
Huron County, MI (Zone 6a) Moderate season
154 days
Last Spring Frost May 9
154 growing days
First Fall Frost October 10

Huron County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-6.9

Drainage

Well Drained

Bleeding Hearts Planting Risk Windows

Early Start (70% safe) ✓ Fits season (57 days to spare)
Start indoors: Feb 27 Transplant: May 8 🌸 Bloom: Jul 3 – Aug 7
Recommended (50%) ✓ Fits season (56 days to spare)
Start indoors: Mar 7 Transplant: May 16 🌸 Bloom: Jul 11 – Aug 15
Safe Start (90%) ✓ Fits season (63 days to spare)
Start indoors: Mar 20 Transplant: May 29 🌸 Bloom: Jul 24 – Aug 28

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 Huron County

How your county's soil matches Bleeding Hearts's growing requirements.

Soil pH

Your soil pH (6.2–6.9) is within Bleeding Hearts's preferred range (6.0–7.0).

Soil Texture

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

Organic Matter

Organic matter is excellent (5.0%) — Bleeding Hearts will thrive.

How to Plant Bleeding Hearts

1.5"
Planting Depth
24"
Between Plants
30"
Between Rows

Succession Planting Bleeding Hearts

2
successive plantings in your 154-day season

Sow every 6.9 weeks. Last sowing by Jul 12 to harvest before frost.

Bleeding Hearts Water Budget

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

Monthly Watering Guide for Bleeding Hearts

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

Month Bleeding Hearts Needs Rainfall You Supplement Action
Jan 1.9" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 3" 0" ❄️ Dormant
Apr 3.9" 0" ❄️ Dormant
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 5.7" 0" ✅ Rainfall sufficient
Jul 4.3" 5.2" 0" ✅ Rainfall sufficient
Aug 4.3" 4.1" 0.2" 💧 Light watering
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3.1" 1.2" 💧 Light watering
Nov 2.5" 0" ❄️ Dormant
Dec 2" 0" ❄️ Dormant

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

Bleeding Hearts 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.

Bleeding Hearts needs ~919 GDD — county provides 1,886 GDD Excellent fit

Bleeding Hearts Planting Timeline — Huron County, MI

Bleeding Hearts Planting Calendar

Activity When Date Range
Start Indoors March 7 Mar 7 – Mar 21
Transplant Outdoors May 16 May 16 – May 30
Bloom July 11 Jul 11 – Aug 15

Plant 1.5" deep · 24" apart · Rows 30" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April
May Transplant Outdoors
June
July Bloom
August Bloom
September
October
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 · Your soil: ideal

🗺️ USDA Zone

Zone 6a

📆 Growing Season

154 days in Huron County

Growing Tips for Bleeding Hearts in Huron County

Direct sow Bleeding Hearts outdoors after May 09 in Huron County when soil has warmed and frost danger has passed.

General growing tips

Plant bare-root crowns in early spring as soon as soil is workable, or in fall at least 6 weeks before hard freeze. Set eyes 1–2 inches below soil level. Morning sun with afternoon shade is ideal; deep shade is tolerated but reduces bloom. Keep moist but well-drained — will not tolerate waterlogged soil. After flowering, the foliage will yellow and die back in summer heat — this is normal. Do not cut back until foliage turns fully yellow; the plant is storing energy. Mark the location to avoid disturbing crowns during summer dormancy. Divide every 4–5 years in early spring. Year 2+ plants produce the fullest flowering display.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Bleeding Hearts in Huron County, MI?

Huron County is in Zone 6a with an average last frost of May 9. Plan your Bleeding Hearts planting based on this frost date — see the calendar above for exact timing.

What planting zone is Huron County, MI?

Huron County, Michigan is in USDA Hardiness Zone 6a. The average last spring frost is May 9 and first fall frost is October 10.

When should I plant Bleeding Hearts in Huron County, ?

In Huron County, , plant Bleeding Hearts after the last frost (around May 9) and before the first frost (around October 10). Best results when soil holds above 50°F.

What growing zone is Huron County, for Bleeding Hearts?

Huron County sits in USDA Zone 6a. Bleeding Hearts grows reliably in zones 3a through 9a, so it's a good fit here.

Can Bleeding Hearts grow in Huron County's climate?

Yes — Bleeding Hearts grows well in Huron County's temperate climate. Huron County averages a 154-day frost-free season, with last frost around May 9 and first frost around October 10.

🌱

Your Huron County Garden Planner — Free

A 22-page printable planner built for Huron County (Zone 6a). 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 Huron County, MI. 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.