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When to Plant Anise in Belknap County, NH

Belknap County, New Hampshire Zone 5b May

May in the garden — Belknap County, New Hampshire

We've pulled the most time-sensitive tasks for Belknap County, New Hampshire this May and put them front and centre. Tackle them in order.

Avg. last frost May 3
Avg. first frost October 11
Soil temp (4") 57°F
Watering Low
Pest pressure Low
Daylight 14.5 hrs
Before June arrives, get these ready
  • Starting indoors: anise

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Anise is an annual herb grown for its licorice-flavored seeds and leaves. The seeds are used in baking, liqueurs, and traditional medicine worldwide.

Belknap County, New Hampshire is in USDA Zone 5b. The average last spring frost is May 3 and the first fall frost is October 11, giving you a growing season of approximately 161 days.

At an elevation of 764 feet, Belknap County receives approximately 48.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Anise during the growing season.

Belknap County, NH (Zone 5b) Moderate season
161 days
Last Spring Frost May 3
161 growing days
First Fall Frost October 11
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Belknap County Soil Profile

Soil Type

Silt Loam

Soil pH

4.8-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (0 days to spare)
Start indoors: Mar 24 Transplant: Apr 21 🍅 Harvest: Jul 21 – Oct 6
Recommended (50%) ✓ Fits season (0 days to spare)
Start indoors: Mar 29 Transplant: Apr 26 🍅 Harvest: Jul 26 – Oct 11
Safe Start (90%) ✓ Fits season (4 days to spare)
Start indoors: Apr 12 Transplant: May 10 🍅 Harvest: Aug 9 – Oct 25

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 Belknap County

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

Soil pH

Your soil pH (4.8–6.8) is more acidic than Anise prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

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

How to Plant Anise

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Plant Water Budget

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

Monthly Watering Guide for Anise

Anise needs approximately 0.4 inches of water per week (1.7" per month). Here's how your county's rainfall compares month by month.

Month Anise Needs Rainfall You Supplement Action
Jan 3" 0" ❄️ Dormant
Feb 3.4" 0" ❄️ Dormant
Mar 4.4" 0" ❄️ Dormant
Apr 3.9" 0" ❄️ Dormant
May 1.7" 3.9" 0" ✅ Rainfall sufficient
Jun 1.7" 4.7" 0" ✅ Rainfall sufficient
Jul 1.7" 4.9" 0" ✅ Rainfall sufficient
Aug 1.7" 4.8" 0" ✅ Rainfall sufficient
Sep 1.7" 3.8" 0" ✅ Rainfall sufficient
Oct 1.7" 4.4" 0" ✅ Rainfall sufficient
Nov 3.8" 0" ❄️ Dormant
Dec 3.6" 0" ❄️ Dormant

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

Anise 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.

Anise needs ~1,601 GDD — county provides 2,455 GDD Excellent fit

Anise Planting Timeline — Belknap County, NH

Anise Planting Calendar

Activity When Date Range
Start Indoors March 29 Mar 29 – Apr 12
Transplant Outdoors April 26 Apr 26 – May 10
Direct Sow April 19 Apr 19 – May 10
Harvest July 26 Jul 26 – Oct 11
Fall Sowing August 2 Aug 2 – Aug 16

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June
July Harvest
August Fall Sowing Harvest
September Harvest
October Harvest
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.4"/week · Natural rainfall sufficient

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 5b

📆 Growing Season

161 days in Belknap County

Growing Tips for Anise in Belknap County

Direct sow Anise outdoors after May 03 in Belknap County when soil has warmed and frost danger has passed.

Common pests for Anise in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow after last frost as anise has a taproot. Harvest seeds when they turn brown. Plants may need staking. The feathery leaves are also edible with a mild anise flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Anise in Belknap County, NH?

Belknap County is in Zone 5b with an average last frost of May 3. Plan your Anise planting based on this frost date — see the calendar above for exact timing.

What planting zone is Belknap County, NH?

Belknap County, New Hampshire is in USDA Hardiness Zone 5b. The average last spring frost is May 3 and first fall frost is October 11.

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Your Belknap County Garden Planner — Free

A 24-page printable planner built for Belknap County (Zone 5b). 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 Belknap County, NH. 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.