When to plant blackberries
Short answer
Plant blackberries about 2 weeks before your last spring frost. In a mid climate (zone 5) that's around Apr 1. It’s a perennial — expect your first real harvest in year 2–3. Enter your ZIP for your exact dates.
| Climate zone | Start indoors | Plant outside | Harvest |
|---|---|---|---|
| Zone 1 | — | Jan 1 | Year 2–3 |
| Zone 2 | — | Feb 1 | Year 2–3 |
| Zone 3 | — | Feb 24 | Year 2–3 |
| Zone 4 | — | Mar 16 | Year 2–3 |
| Zone 5 | — | Apr 1 | Year 2–3 |
| Zone 6 | — | Apr 16 | Year 2–3 |
| Zone 7 | — | May 1 | Year 2–3 |
| Zone 8 | — | May 18 | Year 2–3 |
Higher climate-zone numbers are colder, so planting shifts later. Blackberries is a hardy crop. Enter your ZIP in the calculator for your exact zone and dates.
What sets the timing for blackberries
When to plant blackberries comes down to one date: your last spring frost. Blackberries is a hardy crop, so it goes in about 2 weeks before your last spring frost. In a mid climate (zone 5) that's around Apr 1.
Blackberries is usually sown straight into the ground — no indoor start needed. As a perennial it establishes over time, so don't expect a full harvest until year 2–3.
Because that anchor date moves with climate, plant-out for blackberries ranges from about Feb 24 in warm zone 3 to May 1 in cold zone 7. Enter your ZIP in the calculator for the exact dates in your zone.
What sets the timing
| Factor | Effect on timing |
|---|---|
| Frost anchor | Timing counts from your last spring frost |
| Hardiness | Blackberries is hardy — it goes in before the last frost |
| Indoor start | Direct-sow — no indoor start needed |
| Days to harvest | Perennial — first real harvest in year 2–3 |
| Climate zone | Higher (colder) zones push plant-out later; warmer zones let you start sooner |
| Soil & weather | Tolerates cool soil and light frost |
How blackberries compares
Plant-out date in a mid climate (zone 5), against an early hardy crop and a late tender one.
| Crop | Plant outside (zone 5) |
|---|---|
| Peas (hardy · plants early) | Mar 11 |
| Blackberries | Apr 1 |
| Tomatoes (tender · plants late) | Apr 29 |
Tips for growing blackberries
- Start blackberries early — it tolerates cool soil and a light frost, so you can plant before your last spring frost.
- Blackberries is a perennial — pick a permanent spot and be patient; the first full harvest comes in year 2–3.
- Enter your ZIP in the calculator for blackberries dates tuned to your exact climate zone.
Your exact dates
Open the planting calendarOther crops
Frequently asked questions
When should I plant blackberries?
Plant blackberries about 2 weeks before your last spring frost. In a warmer zone 4 that's around Mar 16; in a colder zone 6, Apr 16.
How is blackberries planted?
Blackberries is planted as a bare-root or potted plant, not started from seed indoors.
How long until blackberries produces?
Blackberries is a perennial. It establishes over a season or two, so expect your first real harvest in year 2–3 rather than the first year.