18/09/2026
Seed starting time for me this week!
Spring Equinox is my reminder that it’s time to start germinating.
It’s not woo woo for some ambiguous cosmic alignment .. it’s science, and it aligns with my workflow, and the conditions here. Equinox means that the days are hitting that 12hr length that is the tipping point when dahlias receive cues to build up vegetative growth. Feeder roots, foliage, strong healthy stems are prioritised when the days are lengthening.
Yes we can “trick” our dahlias into thinking that they are in long days by using indoor growlights, but my lights are busy tricking all my Spring cuttings at the moment, so even if I wanted to I don’t have the space for 2000 seedlings in there.
Instead, I’ll be putting my dahlia seed trays out in full sun, to maximise healthy growth and have them already sun hardened so that as soon as they are happy and strong with around 3-4 pairs of leaves I’ll transplant them straight out, with very minimal transplant shock.
If you didn’t collect any dahlia seed last Autumn, don’t panic, and don’t race around trying to buy seed.
Growing your own seed is SO satisfying and will honestly give you better results than chasing seed from other growers. Only you know what you like best. Think about which your favourite dahlias are that you grow now and plan to hybridise with those. Spring is for planning & planting. Think about which dahlias you plant side by side to optimise bee pollination this season to give you your own amazing seed to look forward next Spring!
And for my Northern hemisphere friends - are you thinking about seed? I hope you are collecting some handfuls of possibilities from your gardens?
A reminder, too, that my dahlia breeding books are both available through Amazon, or direct from my website if you are in Australia (link in bio), in case you’d like to immerse yourself in images and ideas and knowledge to further your dahlia dreaming ✨💕🌸
PS any Agnes Obel fans out there? Her new album “The Meaning of Flowers” is on repeat in my ears and is magnificent!