B and T World Seeds' reference number:
USDA average, annual, minimum temperature Zone:4
Type of plant - shrub
Flower: RED MIX
Height in meters: 3
Parts of Rhododendron catawbiense Red Mix are considered toxic.
Rhododendron catawbiense Red Mix
is included in the following B and T World Seeds flowering plant categories:
10: Rhododendron and Azalea Species and Hybrid Seed List
40: Shrub Seed List, Hardy and Tender
131: Toxic Plants
185: Plant Species whose germination is improved by Smoke
Rhododendron catawbiense Red Mix seeds will usually germinate in 50-90 days, even under good conditions germination may be erratic. Normally will only germinate with light so surface sow. Sow Rhododendron catawbiense Red Mix seeds on the surface of a Acid Peat seed sowing mix at about 15°C.
Seeds will mostly germinate as the weather warms up in Spring, some may germinate during the Summer or Autumn but are more likely to stay dormant until the following Spring.
Keep shaded from direct sun.