Cactus and Succulents forum: Seedling growth speed comparison

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Name: Stefan
SE europe(balkans) (Zone 6b)
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skopjecollection
Apr 5, 2018 10:32 AM CST
So far, out of experience, i can tell you that selenicereus and hylocereus grow fast, saguaro slow, ferocactus and stenocereus medium. Who can tell me out of experience(and preferably pictures) for the following cacti
- peniocereus gregii
- echinocereus willcoxia subgenus
- frailea
- gymnocalycium
- pachycereus pecten aboriginum(priority)
- pahycereys(lophocereus) schottii(priority)
- ariocarpus(maybe)
-thelocactus
- rebutia
-parodia
-eriosyce
-lobivia
Name: Porkpal
Richmond, TX
Charter ATP Member I was one of the first 300 contributors to the plant database! Keeper of Poultry Farmer Roses Raises cows
Garden Ideas: Level 2 Celebrating Gardening: 2015 Plant Identifier
porkpal
Apr 5, 2018 11:33 AM CST
I can't help, but I will be curious to hear what others have to say. - Interesting topic!
Porkpal
Name: Jai or Jack
WV (Zone 6b)
Om shanti om.
Container Gardener Region: West Virginia Multi-Region Gardener Garden Photography Amaryllis Zinnias
Gardens in Buckets Annuals Houseplants Plant and/or Seed Trader Birds Garden Ideas: Level 1
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Jai_Ganesha
Jul 25, 2018 7:16 AM CST
So much depends on the quality of the seed, not just germination but also the first few weeks of growth because viability is not an on/off switch--rather, it's a dial switch.

What I mean is that if you have fresh seeds from last year of any of these species, you're more likely to get higher germination and quicker growth than if your seeds are 5 years old. If your seeds are 20 years old, then you'll see even more drastic differences.

This is complicated when comparing growth rates across species because seed viability and longevity (which are not necessarily the same thing) vary across species, too.
Keep going!

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