📍 Denver, NY · Zone 5b · Last frost Saturday, April 25, 2026
✏️ ChangeWhen to Plant Plum Tree in Denver, New York (12421)
Location
Denver, New York
ZIP Code
12421
USDA Zone
5b
Last Frost
Saturday, April 25, 2026
📅 Your 2026 Planting Dates
Direct Sow Outdoors
Saturday, March 14, 2026
Based on last frost Saturday, April 25, 2026 · Zone 5b
Pro tip: Sow Plum Tree directly outdoors 6 weeks before your last frost date.
🌿 Plant Details
☀️ Growing Requirements
☀️
Sun
Full Sun (6-8 hours)
💧
Water
Moderate (1 inch/week)
↔️
Spacing
180" apart
Ready to Plant Plum Tree in Denver?
Get your seeds now so they're ready by Saturday, March 14, 2026.
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🤝 Good Companions
⚠️ Avoid Planting Near
Full Companion Planting Guide for Plum Tree
See which plants help Plum Tree thrive, which to keep away, and raised bed layout tips →
🛠️ Supplies You'll Need
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🌾 Seed Saving Guide
🪴 Vegetative propagationPropagate vegetatively, not by seed
Plum seeds do not grow true. Propagate by grafting for reliable fruit quality.
Remove flesh from pit, crack the outer shell, and cold-stratify for 3–4 months to germinate.
Raised Bed Planting Guides
A 4×8 bed fits 0 plants of Plum Tree. See plant counts, spacing grids, and companion pairings for every bed size →
Frequently Asked Questions
When should I plant Plum Tree in Denver, New York? +
In Denver (Zone 5b), direct sow Plum Tree outdoors around Saturday, March 14, 2026.
What is the last frost date for Denver, New York? +
The average last spring frost date for Denver, New York (ZIP 12421) is around Saturday, April 25, 2026. This is based on NOAA climate normals for USDA Zone 5b.
How long does Plum Tree take to grow? +
Plum Tree typically matures in about 1460 days from direct sowing. In Denver, that means you can expect harvest around Saturday, March 14, 2026 plus 1460 days.
Should I start Plum Tree indoors or direct sow in New York? +
Plum Tree does best when direct sown outdoors. In Denver, sow directly around Saturday, March 14, 2026.
📚 More Plum Tree Planting Guides
Other Plants for Denver
Growing Plum Tree in Zone 5b
Plum Tree (Prunus domestica) is a popular garden vegetable. In Denver, New York, which is in USDA Hardiness Zone 5b, you should direct sow seeds around Saturday, March 14, 2026.
Your average last frost date is Saturday, April 25, 2026. Plum Tree grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.