We hope you have enjoyed the SRGC Forum. You can make a Paypal donation to the SRGC by clicking the above button

Author Topic: Roscoea 2024  (Read 6995 times)

Herman Mylemans

  • Hero Member
  • *****
  • Posts: 1206
  • Country: be
    • Gentians
Re: Roscoea 2024
« Reply #15 on: August 03, 2024, 09:57:29 AM »
is R. purpurea the most vigorous species?
 my March seedlings are already 20 cm high! but they started slowly...

on the other hand, a species whose label I've lost (but fortunately you'll be there when it flowers ;D) sown last year is still only 7 cm high.
Véronique, in our garden R. purpurea is indeed the most vigorous specie.
Belgium

MarcR

  • Hero Member
  • *****
  • Posts: 521
  • Country: us
Re: Roscoea 2024
« Reply #16 on: August 10, 2024, 12:17:57 AM »
Herman.

Do you grow any other hardy members of Zingiiberaceae?
« Last Edit: August 10, 2024, 12:33:49 AM by MarcR »
Marc Rosenblum

Falls City, OR USA

I am in USDA zone 8b where temperatures almost never fall below 15F -9.4C.  Rainfall 50" 110 cm + but none  June-September.  We seldom get snow; but when it comes we get 30" overnight. Soil is sandy loam with a lot of humus. 
Oregon- where Dallas is NNW of Phoenix

Herman Mylemans

  • Hero Member
  • *****
  • Posts: 1206
  • Country: be
    • Gentians
Re: Roscoea 2024
« Reply #17 on: August 11, 2024, 08:50:50 AM »
Herman.

Do you grow any other hardy members of Zingiiberaceae?
Marc, I have also Cautleya gracilis.
Belgium

MarcR

  • Hero Member
  • *****
  • Posts: 521
  • Country: us
Re: Roscoea 2024
« Reply #18 on: August 11, 2024, 09:02:09 PM »
Herman,

VERY NICE!  I'm growing 18 species in 4 genera; but they are all seedlings planted  from last year's and the previous year's exchanges. 
Marc Rosenblum

Falls City, OR USA

I am in USDA zone 8b where temperatures almost never fall below 15F -9.4C.  Rainfall 50" 110 cm + but none  June-September.  We seldom get snow; but when it comes we get 30" overnight. Soil is sandy loam with a lot of humus. 
Oregon- where Dallas is NNW of Phoenix

Herman Mylemans

  • Hero Member
  • *****
  • Posts: 1206
  • Country: be
    • Gentians
Re: Roscoea 2024
« Reply #19 on: August 15, 2024, 04:57:03 PM »
Roscoea purpurea

Roscoea purpurea 'Alba'
Belgium

Véronique Macrelle

  • Hero Member
  • *****
  • Posts: 585
  • Country: fr
Re: Roscoea 2024
« Reply #20 on: August 22, 2024, 07:48:25 AM »
my juvenile R. purpurea plants don't have dark stems like this one.
I have Roscoea purpurea ‘Spice Island’ which has been in the ground for several years, but it no longer flowers because it is in too much shade, I think.
 What is the exposure Herman? Does it get any sun?

Herman Mylemans

  • Hero Member
  • *****
  • Posts: 1206
  • Country: be
    • Gentians
Re: Roscoea 2024
« Reply #21 on: August 22, 2024, 09:04:22 AM »
my juvenile R. purpurea plants don't have dark stems like this one.
I have Roscoea purpurea ‘Spice Island’ which has been in the ground for several years, but it no longer flowers because it is in too much shade, I think.
 What is the exposure Herman? Does it get any sun?
Véronique,  they get the morning sun, never in deep shade . Maybe it is a matter of feeding.
« Last Edit: August 22, 2024, 09:07:28 AM by Herman Mylemans »
Belgium

Herman Mylemans

  • Hero Member
  • *****
  • Posts: 1206
  • Country: be
    • Gentians
Re: Roscoea 2024
« Reply #22 on: September 19, 2024, 05:52:46 PM »
Roscoea purpurea 'Vannin' HWJK 2406 is a late flowering form.
Belgium

Maggi Young

  • Forum Dogsbody
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 44759
  • Country: scotland
  • "There's often a clue"
    • International Rock Gardener e-magazine
Re: Roscoea 2024
« Reply #23 on: September 19, 2024, 09:09:31 PM »
Roscoea purpurea 'Vannin' HWJK 2406 is a late flowering form.
Wow! Not one I've seen before - very "different".
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

Editor: International Rock Gardener e-magazine

MarcR

  • Hero Member
  • *****
  • Posts: 521
  • Country: us
Re: Roscoea 2024
« Reply #24 on: September 20, 2024, 05:57:11 AM »
Hi Herman,

Very nice!  I can hardly wait until my seedlings flower; but I expect it will be 2-4 years.
Marc Rosenblum

Falls City, OR USA

I am in USDA zone 8b where temperatures almost never fall below 15F -9.4C.  Rainfall 50" 110 cm + but none  June-September.  We seldom get snow; but when it comes we get 30" overnight. Soil is sandy loam with a lot of humus. 
Oregon- where Dallas is NNW of Phoenix

Mariette

  • Hero Member
  • *****
  • Posts: 793
  • Country: de
Re: Roscoea 2024
« Reply #25 on: September 22, 2024, 08:49:35 PM »
You´re putting up a marvellous show of roscoeas, Herman! Very beautiful specimens! I´m so sorry that none of mine reappeared this year, due to the slugs, I think. Nevertheless, I couldn´t resist to buy some exciting new ones recently. For safety´s sake, they are residing in the green house.

Véronique Macrelle

  • Hero Member
  • *****
  • Posts: 585
  • Country: fr
Re: Roscoea 2024
« Reply #26 on: September 24, 2024, 07:37:04 AM »
it's sad when slugs kill a whole plant...


 here's the first flower from a 2/3 year old seedling. the one whose label I've lost
 the plant is still small (15 cm high).
 perhaps you could identify it?
a 2 cm flower

Véronique Macrelle

  • Hero Member
  • *****
  • Posts: 585
  • Country: fr
Re: Roscoea 2024
« Reply #27 on: September 24, 2024, 08:18:06 AM »
my plant was bought from a nursery without a cultivar name:
it's been faithful for years, but I think it's in too much shade now because it's getting longer.
 it did flower a little in september.
the best time to move it is this autumn when it has lost its leaves?

I thought it might be ‘Spice Island’; if you have another idea...

Mariette

  • Hero Member
  • *****
  • Posts: 793
  • Country: de
Re: Roscoea 2024
« Reply #28 on: September 24, 2024, 09:03:42 AM »
it's sad when slugs kill a whole plant...


 here's the first flower from a 2/3 year old seedling. the one whose label I've lost
 the plant is still small (15 cm high).
 perhaps you could identify it?
a 2 cm flower

It may be R. scillifolia - I sowed this one last year, and it flowered the same year, also at this time. It will remain a small plant with tiny flowers.
« Last Edit: September 24, 2024, 03:25:43 PM by Mariette »

Herman Mylemans

  • Hero Member
  • *****
  • Posts: 1206
  • Country: be
    • Gentians
Re: Roscoea 2024
« Reply #29 on: September 24, 2024, 10:56:24 AM »
it's sad when slugs kill a whole plant...


 here's the first flower from a 2/3 year old seedling. the one whose label I've lost
 the plant is still small (15 cm high).
 perhaps you could identify it?
a 2 cm flower
It looks like  R. scillifolia!
Belgium

 


Scottish Rock Garden Club is a Charity registered with Scottish Charity Regulator (OSCR): SC000942
SimplePortal 2.3.5 © 2008-2012, SimplePortal