Black Eyed Susan

[jackarmy]

So.........................

fed up with this ( easy enough for kids ) flower im ripping my face off.
Have tried all sorts,
Soaking and chitting , soaking and sowing in normal soil
soaking and sowing in a prop
soaking and chitting and sowing in a prop.

So far, over the last two seasons, ive had one seedling appear , but with the seed stuck to its head it failed ,
help... please....................

[Scarlet]

Well, first off...how old is the seed? I think it's probably the seed/seed supplier is the issue. Have you bought fresh?

[toomanytommytoes]

Sounds like they may benefit from a period of cold stratification. From https://tomclothier.hort.net/page04.html :

Rudbeckia hirta - Sow at 20ºC (68ºF), if no germination in 3-4 wks, move to -4 to +4ºC (24-39ºF) for 2-4 wks

[DannyK]

Which one? Thunbergia or Rudbeckia?

Never any problems with former at 24C.

[Mitzi]

I've also grown the thunbergia one several times (although not for years) and never had any problem getting it to germinate. Don't remember doing anything special.

Haven't grown rudbeckia; was thinking of giving it a go this year.

[jackarmy]

Thumbergia
and three different sources, all fresh seed , the latest from a well known supplier, i dont know what im doing wrong here, i really dont.

[Scarlet]

I've only grown it once...and I can't remember how many germinated. but I have had a little g@@gle and they need light to germinate. Also they can take 21 days - you may need some patience.

[Scarlet]

Haven't grown rudbeckia; was thinking of giving it a go this year.

I grow rudbeckia every year. They are easy, but they need sowing this month at the latest.