How to Grow Chives in Harrisburg, PA

Hardy, Perennial Herbs with Delicate Onion Flavor and Beautiful Purple Blooms

Cold Hardy (Zone 3-9) Harrisburg Zone 6b-7a Perennial - Returns Yearly Full Sun to Part Shade

Harrisburg Chive Calendar

Start Indoors

Feb 15 - Mar 1

6-8 weeks before last frost for early starts

Plant Outdoors

March 15 - April 15

Or up to 7 weeks before last frost

First Harvest

May - June

When leaves reach 6-8 inches tall

Harrisburg Pro Tip

Chives are extremely cold-hardy and perennial in Harrisburg. Plant once and they'll return every spring! They're also excellent companion plants - their onion scent repels pests from nearby vegetables.

Choosing Your Chive Varieties

Several types of chives thrive in Harrisburg gardens:

Common Chives Garlic Chives Siberian Garlic Chives Fine-Leaf Chives Pink-Flowering Chives

Common plants

Allium schoenoprasum - Traditional mild onion flavor. Purple pompom flowers in late spring. Grows 12-18 inches tall.

Garlic plants

Allium tuberosum - Flat leaves with mild garlic flavor. White flowers in late summer. Also called Chinese plants.

Perennial Nature

All plant varieties are perennial in Harrisburg (Zones 3-9). They'll come back bigger and better each year with minimal care.

Planting Chives

Chives can be started three ways: seeds, transplants, or division of existing clumps.

1 Starting from Seed

Indoors (Feb 15-Mar 1): Sow seeds ¼ inch deep in seed starting mix. Keep at 65-70°F. Germination takes 10-14 days.

Direct Sow (March-April): Sprinkle seeds 1 inch apart, cover with ¼ inch soil.

2 Planting by Clumps

From transplants or divisions: Plant clumps 6 inches apart with pointy end up. Cover with soil and water well.

3 Soil Preparation

Choose site with 6-8 hours of sun
Well-draining soil with pH 6.0-7.0
Add organic matter before planting
Containers: 6+ inches deep with drainage holes

Harrisburg Soil Tip

Our clay soil benefits from raised beds or containers for chives. If planting in ground, amend with compost and sand to improve drainage. Chives don't like "wet feet".

Year-Round Care

Watering

Chives retain water well. Water when top inch of soil feels dry. Avoid overwatering - they don't like soggy soil. Water at base to keep leaves dry.

Sunlight

Full sun (6-8 hours) for best growth. Can tolerate partial shade, especially in hot summer afternoons.

Fertilizing

If soil is healthy, fertilizer isn't needed. For a boost, apply Bulb-tone or similar organic fertilizer once yearly in spring.

Summer Dormancy

Chives prefer cooler weather and may go dormant during hot Harrisburg summers. Cut back and they'll regrow in fall.

Growing Chives Indoors

Perfect for year-round harvest on a sunny windowsill.

Indoor Requirements

Container: 6-inch deep pot with drainage holes
Soil: Sterilized potting mix (sterilize containers with bleach solution)
Light: South-facing window, 6-8 hours direct sun
Planting: Seeds ¼ inch deep OR clumps 6 inches apart
Temperature: Cool room temperatures, 60-70°F

Tip: Start new indoor pots in fall to enjoy fresh chives all winter. Rotate pots weekly for even growth.

Harvesting Chives

When to Harvest

First harvest: When leaves are 6-8 inches tall (about 60 days from seed)
Method: Cut leaves 2 inches above base with sharp scissors
Frequency: Harvest 3-4 times per season; regular cutting encourages growth
Flowers: Harvest buds before opening, or use flowers as edible garnish

Harvesting Guidelines

Never cut more than ⅓ of the plant at once
Stop harvesting 4-6 weeks before first frost (early September)
Leaves are best fresh but can be frozen or dried
Store fresh in refrigerator for 5-7 days in damp paper towel

Before First Frost

Average first frost in Harrisburg is October 15. Before this, cut back plants to 2 inches. Bring pots indoors for winter harvest, or let plants go dormant and return in spring.

Dividing & Propagating

Every 2-3 years, divide chives to prevent overcrowding and rejuvenate plants.

Dig Up

In early spring, carefully dig up the entire clump.

Separate

Gently pull apart into smaller sections, each with bulbs and leaves.

Replant

Plant divisions 6 inches apart with pointy end up. Water well.

Best time to divide: Early spring (March-April) or early fall (September) in Harrisburg. Avoid dividing during hot summer months.

Pest & Disease Management

Chives are relatively pest-resistant, but watch for these issues in Harrisburg:

Pests Diseases Prevention

Common Problems

Allium Leafminer: Look for round wounds on leaves, wavy or curled growth. Use row cover cloth to prevent egg-laying.
Black Aphids: Blast with water, use ladybugs, or hand remove. Row covers help prevent.
Damping Off: Seedlings collapse. Prevent with clean containers and good air circulation.
Root Rot: Caused by overwatering. Ensure good drainage and let soil dry between waterings.
Powdery Mildew: White coating on leaves in humid weather. Ensure good airflow, avoid crowding.

Harrisburg-specific: Our humid summers can lead to powdery mildew. Plant in locations with good air circulation and water in the morning so leaves dry before nightfall.