Black Seeded Simpson Lettuce: Yield, Maturity and Characteristics
Black Seeded Simpson lettuce is a leaf lettuce variety, also sold or known as Black Simpson lettuce or Lettuce Leafy Blk. Simpson. The Philippine Seed Board approved it in 1970. B.M. Domingo bred it. It takes 33 to 40 days from sowing to harvest.
If you came here looking for Black Simpson lettuce or Lettuce Leafy Blk. Simpson, this is the same lettuce. Its seller and farm sources add notes, listed at the end. Compare it with the others in our lettuce variety finder, or see every crop variety we list. For the crop itself, read our guide: vegetables in the Philippines.
- Days to harvest: 33 to 40 days from sowing to harvest.
- Type: Leaf.
Key facts about Black Seeded Simpson lettuce
| Trait | What the record shows |
|---|---|
| Registration | Philippine Seed Board |
| Year approved | 1970 |
| Breeder or owner | B.M. Domingo |
| Also known as | Black Simpson lettuce, Lettuce Leafy Blk. Simpson |
| Type | Leaf |
| Days to harvest | 33 to 40 days |
How long does it take, and how much does it yield?
Black Seeded Simpson lettuce takes 33 to 40 days from sowing to harvest. That is 22.2 days faster than the average of the 5 lettuce varieties with a day count, 58.7 days. A shorter crop frees the field sooner and dodges more of the weather, while a longer one often fills more. Its seller gives 33 to 40 days in the Seed Board record, Ramgo's packet says 45 to 50 days after transplanting.
Once you know the day count, anee.io dates every task from each lot's own planting day, with the growth stages and weather beside it.
Is it resistant to pests and diseases?
No pest or disease ratings are published for this variety. So treat it as untested, and scout every week.
The pests and diseases that hit lettuce fields most often: bacterial soft rot, Cercospora leaf spot, cutworm, damping off, leafminer. Our pest finder and disease finder help you name what you see.
What its seller and farm sources say
- Fruit: Leaves: loose leaf type, no head.
- Season: All year.
- Where: Lowland to highland (the Seed Board rates it for both low and high elevation).
Why farmers know it: one of the five lettuces on the old Philippine Seed Board list and still sold as a Ramgo garden packet. Check these against what farmers near you have seen, because the same variety can do differently from one town to the next.
Where and when to plant Black Seeded Simpson lettuce
Loose leaf lettuce grows in the lowlands, while heading types need the highlands. Pick a variety slow to bolt in the heat. Before planting, get the field ready with our guide: Pagtatanim ng gulay.
Before you buy seed
- Buy sealed packs or tagged sacks from an accredited dealer, and check the packing date and germination rate.
- Ask your municipal agriculturist or nearby farmers how it did in your area last season.
- Try it on a small area first, beside the variety you usually plant, before you switch the whole farm.
- Write down the planting day, inputs and harvest, so you can compare varieties on your own ground. anee.io keeps these records for you.
Set the planting day of each lot and anee.io dates every task to harvest, with the weather beside it. Free on the Libre plan.
Start freeLettuce varieties like this one
These are the closest matches among the lettuce varieties we list. So if seed of this one is hard to find, compare these first.
- Oakleaf: 34 to 40 days, 1970
- Slobolt: 35 to 40 days, 1970
- Great Lakes 118: 85 to 90 days, 1970
- Valverde: 90 to 100 days, 1970
Is Black Simpson lettuce the same as Black Seeded Simpson?
How long does it take to harvest?
Where can I buy seed of Black Seeded Simpson?
See how Black Seeded Simpson will do on your farm
With Libre + Anee, see its full record: how it yields, its strengths and weaknesses against pests, diseases and the weather, and whether it fits your farm, your season and your soil.
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