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When to plant Geraniums in Hancock County, ME

Plant Geraniums in Hancock County during the brief May 13–May 27 window. With 158 frost-free days, fall plantings can't mature before October 11.

When to Plant Geraniums in Hancock County, ME

Geraniums (Pelargonium × hortorum) are tender perennials grown as warm-season annuals throughout North America. Prized for their bold flower clusters, long bloom period, and tolerance of summer heat when planted in well-drained soil, they anchor window boxes, containers, and bed borders from late spring until hard frost. Zones 9b–11b can overwinter plants in the ground.

Hancock County, Maine is in USDA Zone 6a. The average last spring frost is May 6 and the first fall frost is October 11, giving you a growing season of approximately 158 days.

At an elevation of 654 feet, Hancock County receives approximately 45.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Geraniums during the growing season.

Annual Blooms in Multi-season Pollinator-friendly Deer-resistant Good for cutting Fragrant
Hancock County, ME (Zone 6a) Moderate season
158 days
Last Spring Frost May 6
158 growing days
First Fall Frost October 11

Hancock County Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.6

Drainage

Well Drained

Monthly Watering Guide for Geraniums

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

Month Geraniums Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 2.9" 0" ❄️ Dormant
Mar 3.3" 0" ❄️ Dormant
Apr 4.1" 0" ❄️ Dormant
May 4.3" 4.2" 0.1" 💧 Light watering
Jun 4.3" 4" 0.3" 💧 Light watering
Jul 4.3" 4.6" 0" ✅ Rainfall sufficient
Aug 4.3" 4.2" 0.1" 💧 Light watering
Sep 4.3" 4.4" 0" ✅ Rainfall sufficient
Oct 4.3" 3.5" 0.8" 💧 Light watering
Nov 3.3" 0" ❄️ Dormant
Dec 3.2" 0" ❄️ Dormant

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

Geraniums Planting Timeline — Hancock County, ME

Geraniums Planting Calendar

Activity When Date Range
Start Indoors February 25 Feb 25 – Mar 11
Transplant Outdoors May 13 May 13 – May 27
Bloom July 22 Jul 22 – Oct 21

Plant 0.1" deep · 12" apart · Rows 14" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6a

📆 Growing Season

158 days in Hancock County

Growing Tips for Hancock County

Start seeds indoors 10–12 weeks before last frost — germination is slow and erratic without bottom heat (70–75°F). Transplant after frost danger passes. Geraniums rarely direct-sown; cuttings or transplants are the standard. Deadhead spent umbels weekly to maintain continuous bloom. Let soil dry slightly between waterings to prevent root rot. In zones 10–11 plants may be left in ground year-round or overwintered as houseplants.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Geraniums in Hancock County, ME?

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

What planting zone is Hancock County, ME?

Hancock County, Maine is in USDA Hardiness Zone 6a. The average last spring frost is May 6 and first fall frost is October 11.

When should I plant Geraniums in Hancock County, ME?

In Hancock County, ME, plant Geraniums after the last frost (around May 6) and before the first frost (around October 11). Best results when soil holds above 50°F.

What growing zone is Hancock County, ME for Geraniums?

Hancock County sits in USDA Zone 6a. Geraniums grows reliably in zones 2a through 11b, so it's a good fit here.

Can Geraniums grow in Hancock County's climate?

Yes — Geraniums grows well in Hancock County's temperate climate. Hancock County averages a 158-day frost-free season, with last frost around May 6 and first frost around October 11.

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Your Hancock County Garden Planner — Free

A 22-page printable planner built for Hancock 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 Hancock County, ME. Local conditions may vary. Last updated: July 2026.

Sources & credits

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