Below is a list of retailers/nurseries selling cactus seed and plants. I've only listed vendors I've done business with.
If you are looking to buy peyote seeds or plants, please check your local laws before doing so. All parts of peyote (Lophophora williamsii) plants and the seeds thereof are classified as Schedule I substances in the United States. Also, peyote is illegal to posses in France, Russia, and possibly more countries.
Seeds
Jan Martin Jecminek has a lot of different seed. Many with locality information.
Another Czech seed retailer is Chrudimsky kaktusar. They are also selling plants. The germination rate of Pavel Pavlicek's seed is incredibly high.
Yet another Czech vendor is Jaromír Dohnalík (the Czechs are big in the cacti business).
Kaktusy Ryšavý has many different Lophophora seeds with locality information (and is by coincidence also Czech ;-).
If you can't find the seeds you're looking for at Steve Brack's Mesa Garden, you probably can't find it anywhere (except peyote seeds - illegal in the USA).
Köhres-Kakteen also have a large selection of cactus seeds - you can find their Lophophora seeds on their general cactus seed list (offering thousands of different varieties of cacti) or have a look at the dedicated "peyote seed list" found at Lophophora.info.
Navajo Country - Pediocactus, Sclerocactus, Navajoa, Toumeya and other hardy cacti.
Plants
Mesa Garden, Uhlig-Kakteen, Kakteen-Haage, and Albert Plapp all have huge selections of plants.
The German retailer Kakteen Kliem has a good selection of plants with locality information.
Affiliate Links
I have joined Cactus Plaza's affiliate program meaning that if you click through to Cactus Plaza and make a purchase, I'll receive a commission helping me to run this blog. Prior to joining the program I tested the quality of Cactus Plaza's goods and services by ordering this splendid crested Lophophora williamsii.
Seedlingservice.com (also by CactusPlaza) offers healthy and naturally grown seedlings of cacti and other succulents.
Grafting stock
Allies (formerly ...of the jungle) carries a good selection of Trichocereus cuttings (I bought Trichocereus 'Juul's Giant'). The people at Allies are extremely helpful and friendly, and their cuttings are healthy and good value.
2024 Holiday Hours and Last Minute Discounts
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2024 Last minute discounts – Starts Right Now! In-store only 25% off all
orchids, houseplants, ornaments, and succulent wreaths Marin: thru 12/22/24
(Hol...
4 days ago