How to encourage spines growth
Posted: Thu Jun 30, 2022 7:28 am
Hello everyone,
I was wandering through different resources and mostly found that for good spines growth cactus need a lot of sun (at least 5-6 hours). I didn't find anything else what could help. In my case my cacti grow inside and has around 4 hours of afternoon sun. I noticed that spines are not so thick and well developed as it should be.
E.g. Last year I bought Ferocactus rectispinus, his spines were thick and close to 5cm long (2 inches), during growing at my place spines decreased almost 2 times - half thickness and length close to 2-3cm (1 inch).
Ferocactus townsendianus stem is pretty big, it grew at my place for a while. As you know spines should have started becoming much thicker however they are still pretty thin.
Echnicactus grusonii also produces wicker spines than expected (last year I put it closer to Ferocactuses but it started getting burns so I had to move it to light shade)
Similar issues I have with Lobivia korethroides, some Mammillarias, some Notocactuses.
However Gymnocalisiums, Echinopsises spines are developing well.
I regularly repot and fertilize, roots are in a good shape.
I've even bought a special growing lamp which producing around 20k lux for 8 hours of additional light in the morning.
I would really appreciate some hints
I was wandering through different resources and mostly found that for good spines growth cactus need a lot of sun (at least 5-6 hours). I didn't find anything else what could help. In my case my cacti grow inside and has around 4 hours of afternoon sun. I noticed that spines are not so thick and well developed as it should be.
E.g. Last year I bought Ferocactus rectispinus, his spines were thick and close to 5cm long (2 inches), during growing at my place spines decreased almost 2 times - half thickness and length close to 2-3cm (1 inch).
Ferocactus townsendianus stem is pretty big, it grew at my place for a while. As you know spines should have started becoming much thicker however they are still pretty thin.
Echnicactus grusonii also produces wicker spines than expected (last year I put it closer to Ferocactuses but it started getting burns so I had to move it to light shade)
Similar issues I have with Lobivia korethroides, some Mammillarias, some Notocactuses.
However Gymnocalisiums, Echinopsises spines are developing well.
I regularly repot and fertilize, roots are in a good shape.
I've even bought a special growing lamp which producing around 20k lux for 8 hours of additional light in the morning.
I would really appreciate some hints