Minimum temp range for Selenicereus grandiflorus

[capot1948]

The local nursery I deal with is interested in some of my Selenicereus grandiflorus cuttings that I've got started. She's asking of they can stand a minimum temp of 45F? I'm not sure so I thought I'd better ask the experts.

[DaveW]

Some of my Selenicereus have been down to freezing in winter if not below, but I don't know about grandiflorus as I think some are more frost tender than others. Also if they have always been grown warm they may need a period to acclimatise. However 45F seems quite warm to me.

This one has stems only about 3ft long and goes down to freezing every year.

HG.jpg (50.19 KiB) Viewed 1079 times

Strange to say the chap I got the original cutting from grows Orchids, therefore runs a warm greenhouse over winter, but has never flowered a Selenicereus.

[capot1948]

Beautiful flower Dave and thank you for the reply. I'll pass this on to her.

[greenknight]

A Cactus of the Month post by Hob, from 2011, says he aims for 5 deg. C for minimum temperature (that's about 40 deg. F) - http://www.cactiguide.com/forum/viewtop ... us#p213509" onclick="window.open(this.href);return false;

[capot1948]

Thank you for that information. I'll let her know. I repotted mine yesterday into 1gal nursery pots about 5 to a pot. The wooden skewers I'd been using were way too short for most so I had to go to using Orchid spike rods and even in a couple of instances those were too short.