Planting pawpaw seeds is not like planting tomatoes or beans. The dormancy requirement means you can't just pick a date in spring and drop seeds in the ground. There are two reliable approaches, and which one you use depends on when you have seeds in hand.
The Two Paths
🍂 Path 1 — Fall Direct Sow
Plant fresh seeds directly in the ground in fall, after the first hard frost. Winter provides natural stratification. Seeds germinate the following spring when soil warms. Simple, no equipment needed. Best for growers in zones 5–7 with reliable cold winters.
Plant: October–November → Germinate: April–May (following year)
🌱 Path 2 — Spring with Pre-Stratified Seeds
Buy seeds that have already been cold-stratified. Plant in spring after last frost. Germinate in weeks, not months. This is what PawpawSeeds.com sells — seeds stratified over winter in Pennsylvania, ready to ship and plant in spring.
Buy in spring → Plant immediately → Germinate: 2–8 weeks
What doesn't work: Buying fresh seeds in spring and planting them immediately. Un-stratified seeds planted in spring won't germinate that season. You'd be waiting until next year. Pre-stratified seeds solve this — they've already done the 4 months of cold storage.
Path 1 — Fall Direct Sow in Detail
This is what nature does. A pawpaw fruit drops in September or October, the seeds end up in the ground covered by leaf litter, and they germinate the following spring. You're just working with that pattern intentionally.
- Timing: Plant after the first hard frost — typically late October to mid-November in zones 5–6, December in zones 7–8. Planting before this risks the seeds breaking dormancy prematurely in a warm fall. Planting too late in frozen ground is impractical.
- Depth and spacing: Plant seeds 1 inch deep. If planting multiple seeds, space them 2–3 inches apart (or at your intended spacing if planting in final position). Cover and firm the soil lightly.
- Mark your planting spots. This sounds obvious but is commonly overlooked. You're waiting 5+ months, through winter. A labeled stake or flag will save confusion come spring.
- Mulch over the top. 2–3 inches of straw or shredded leaves helps moderate soil temperature and keeps moisture consistent through freeze-thaw cycles. It also discourages birds from scratching up the seeds.
- Wait. Nothing visible will happen until spring. Germination typically begins April–May in zones 5–6 when soil temperature reaches 65–70°F.
Fall direct sow tradeoffs: Less work up front, but you're committing to waiting an entire winter. If you plant in a temporary bed, you still have to deal with transplanting the taproot later — which is risky. If you can plant directly in the final location, fall direct sow makes a lot of sense.
Path 2 — Spring Planting with Pre-Stratified Seeds
Buy seeds that already have the cold hours logged. Plant when conditions are right for germination. This gets you growing this season.
- Timing for outdoor direct sow: After last frost, once soil temperature is above 60°F. For zone 6 (Philadelphia/central Pennsylvania area), that's late April through May. See the zone timing chart for specifics.
- Timing for indoor start: You can start pre-stratified seeds indoors 4–6 weeks before your outdoor planting date. Use deep containers (4+ inches) to accommodate the taproot. Set under grow lights or on a south-facing windowsill. Harden off before transplanting outside.
- Planting depth: 1 inch deep, same as fall direct sow. If the seed has already sprouted a small radicle (root tip), plant it root-end down. Handle carefully — the radicle is fragile.
- Germination timeline: 2–8 weeks after planting, at soil temperatures of 65–75°F. Seeds in the same batch often germinate unevenly — some in 2 weeks, others in 6 weeks. Don't give up on slower seeds too early.
Indoor vs. Direct Sow
🏠 Starting Indoors
More control. Can get a head start on the season. Good option if you want to monitor germination closely or if your outdoor window is short. Requires deep containers and careful taproot management at transplant time. Hardening off is required before going outside.
🌿 Direct Sow Outdoors
Simpler. No transplant shock risk. The taproot grows straight down from the start — no container constraints. Good option if you're planting in the final spot and don't want to deal with transplanting. Slightly longer time to first leaf above ground.
Germination Timeline
- Days 1–14: Radicle (root tip) emerges and grows downward. Nothing visible above ground yet.
- Days 14–30: First shoot may begin pushing toward the surface. Still nothing visible in most cases.
- Days 21–56: First leaves break the surface. Timing depends heavily on soil temperature. Warm soil (70–75°F) accelerates this significantly.
- Day 60+: If nothing has germinated and soil temperature has been adequate, the seed may not be viable. But give it 8 weeks minimum before writing it off — late germinators in a batch are common.
Why buying pre-stratified seeds saves a full season. Fresh seeds bought in spring require another 90–120 days of cold stratification before they'll germinate. That puts germination at fall at the earliest — too late to establish a seedling before winter. Pre-stratified seeds bought in spring get in the ground immediately and germinate that season.
Plant This Season, Not Next Year
Our seeds are cold-stratified over a full Pennsylvania winter and ship ready to plant in spring. No 4-month wait, no fridge management. 10 seeds per pack, shipping included.
Order Pre-Stratified Seeds