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When to Plant Elderberries in Caledonia County, VT

Caledonia County, Vermont Zone 4b May

May in the garden — Caledonia County, Vermont

May is a pivotal month for Caledonia County, Vermont gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost May 14
Avg. first frost October 3
Soil temp (4") 54°F
Watering Low
Pest pressure Low
Daylight 14.6 hrs
Get ahead of June
  • Transplants going out: elderberries

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Elderberries are fast-growing shrubs or small trees producing clusters of small, dark berries used for syrups, wines, and immune-boosting preparations. The flowers are also edible.

Caledonia County, Vermont is in USDA Zone 4b. The average last spring frost is May 14 and the first fall frost is October 3, giving you a growing season of approximately 142 days.

At an elevation of 1,052 feet, Caledonia County receives approximately 49.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Elderberries to ensure they mature before fall.

Caledonia County, VT (Zone 4b) Short season
142 days
Last Spring Frost May 14
142 growing days
First Fall Frost October 3

Caledonia County Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Jun 5
Recommended (50%) ✓ Fits season
Transplant: Jun 11
Safe Start (90%) ✓ Fits season
Transplant: Jun 24

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 Caledonia County

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

Soil pH

Your soil pH (5.0–6.8) overlaps with Elderberries's range (5.5–6.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.9%). Annual compost additions will help Elderberries.

How to Plant Elderberries

120"
Between Plants
144"
Between Rows

Plant Water Budget

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

Monthly Watering Guide for Elderberries

Elderberries needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Elderberries Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 4.7" 0" ❄️ Dormant
Apr 4.1" 0" ❄️ Dormant
May 3.5" 4.4" 0" ✅ Rainfall sufficient
Jun 3.5" 5.1" 0" ✅ Rainfall sufficient
Jul 3.5" 4.9" 0" ✅ Rainfall sufficient
Aug 3.5" 5" 0" ✅ Rainfall sufficient
Sep 3.5" 3.8" 0" ✅ Rainfall sufficient
Oct 3.5" 4.4" 0" ✅ Rainfall sufficient
Nov 3.4" 0" ❄️ Dormant
Dec 3.1" 0" ❄️ Dormant

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

Elderberries 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.

Elderberries needs ~10,494 GDD — county provides 1,633 GDD May not mature

Elderberries Planting Timeline — Caledonia County, VT

Elderberries Planting Calendar

Activity When Date Range
Transplant Outdoors June 11 Jun 11 – Jun 25

· 120" apart · Rows 144" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 5.5–6.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 4b

📆 Growing Season

142 days in Caledonia County

Growing Tips for Elderberries in Caledonia County

Direct sow Elderberries outdoors after May 14 in Caledonia County when soil has warmed and frost danger has passed.

Your 142.0-day growing season in Caledonia County is tight for Elderberries (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant at least two varieties for cross-pollination. Prune annually to remove old canes and maintain shape. Berries must be cooked before eating as raw berries are mildly toxic.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Elderberries in Caledonia County, VT?

Caledonia County is in Zone 4b with an average last frost of May 14. Plan your Elderberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Caledonia County, VT?

Caledonia County, Vermont is in USDA Hardiness Zone 4b. The average last spring frost is May 14 and first fall frost is October 3.

🌱

Your Caledonia County Garden Planner — Free

A 24-page printable planner built for Caledonia County (Zone 4b). 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 Caledonia County, VT. Local conditions may vary. Last updated: May 2026.

Sources & credits

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