When to Plant Red Currant in Kwethluk, Alaska (99621)

Location

Kwethluk, Alaska

ZIP Code

99621

USDA Zone

Last Frost

Friday, May 15, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Friday, April 17, 2026

Based on last frost Friday, May 15, 2026 · Zone 4a

Pro tip: Sow Red Currant directly outdoors 4 weeks before your last frost date.

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🌿 Plant Details

Scientific Name Ribes rubrum

Days to Maturity 730 days

Mature Height 36-60"

Spread 48"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

60" apart

🌱

Planting Depth

4" deep

Seeds typically germinate in 21-42 days

Ready to Plant Red Currant in Kwethluk?

Get your seeds now so they're ready by Friday, April 17, 2026.

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🤝 Good Companions

RosemaryHyssop

⚠️ Avoid Planting Near

Black Walnut

🤝

Full Companion Planting Guide for Red Currant

See which plants help Red Currant thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🌿 Fruit Tree Fertilizer 🕸️ Garden Netting 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Harvest ripe berries mid-summer when fully red.

Processing

Mash berries, strain seeds from pulp, rinse and dry completely before storing.

Seed Viability

Up to 2 years when stored cool, dark, and dry.

Pro Tip

Cold-stratify seeds in the fridge for 6–8 weeks before sowing in spring to improve germination.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 1 plant of Red Currant. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Red Currant in Kwethluk, Alaska? +

In Kwethluk (Zone 4a), direct sow Red Currant outdoors around Friday, April 17, 2026.

What is the last frost date for Kwethluk, Alaska? +

The average last spring frost date for Kwethluk, Alaska (ZIP 99621) is around Friday, May 15, 2026. This is based on NOAA climate normals for USDA Zone 4a.

How long does Red Currant take to grow? +

Red Currant typically matures in about 730 days from direct sowing. In Kwethluk, that means you can expect harvest around Friday, April 17, 2026 plus 730 days.

Should I start Red Currant indoors or direct sow in Alaska? +

Red Currant does best when direct sown outdoors. In Kwethluk, sow directly around Friday, April 17, 2026.

📚 More Red Currant Planting Guides

🗺️

Red Currant in Alaska

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 4a Red Currant Guide

All cities in your zone · Avg dates

→

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Growing Red Currant in Zone 4a

Red Currant (Ribes rubrum) is a popular garden vegetable. In Kwethluk, Alaska, which is in USDA Hardiness Zone 4a, you should direct sow seeds around Friday, April 17, 2026.

Your average last frost date is Friday, May 15, 2026. Red Currant grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.