Welcome to our guide to growing a cactus from seed. Growing plants from seeds all the way to mature plants is a very rewarding process, here we cover how to germinate cacti from seeds.
How To Grow A Cactus From Seed
To grow a cactus from seed follow these step by step instructions:
- Get everything you need ready: cactus seed, cactus soil, a fairly big plant pot (or at least wide enough), and a plastic bag to cover it afterwards.
- Fill the plant pot with enough cactus compost to almost the top, except for half an inch or 2 cms.
- Sprinkle the seeds over the top of the soil, as evenly as possible, but don’t worry too much if some are close.
- Cover the seeds with a thin layer of soil.
- Water the soil gently so that the seeds don’t move too much.
- Cover the pot with a plastic bag and seal it shut.
- Then put the pot in a warm bright window with plenty of indirect sunlight.
- Within a 2 to 4 weeks the little cacti should be popping through, at this stage you can take the bag off.
- Spray the soil with water about 3 times a week to give the seedlings enough moisture.
- In about 6 or 7 months, once the cacti have got a bit bigger you can pot them up into their own small pots.
See also: Succulent Propagation (with pictures).
How Long Does It Take For Cactus Seed To Germinate?
The seeds will germinate between two and four weeks if kept warm and moist.
How Long Does It Take To Grow Cactus From Seed?
The seeds will germinate well within the first month, then will grow slowly and by the next year they should be big enough to pot up.
For more on which cactus and succulent compost to buy or how to make you own, see our guide: Succulent Soil.
Please also follow us on Instagram for occasional plant giveaways.