B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Kalmia latifolia Rubra is cold hardy
USDA Zone:4 -30° to -20°F (-34.5° to -29°C)
|Type of plant - evergreen shrub
Flower or inflorescence:
deep PINK bud
|Height, in meters: 10
Height, in feet: 33.00
|Kalmia latifolia Rubra sales history
| Parts of Kalmia latifolia Rubra are considered toxic.
Kalmia latifolia Rubra
is included in the following
B and T World Seeds flowering plant categories.
|29||: Temperate Forest and Woodland Tree and Shrub Seed List|
|36||: Herb Seed List Culinary Medicinal Dye and Aromatic|
|Not all medicinal, dye or aromatic plants are edible, some are toxic if eaten and others are dangerous if applied to the skin. Please check uses for plants.|
|40||: Shrub Seed List, Hardy and Tender|
|86||: Natives of U.S.North East|
|131||: Toxic Plants|
|Some of the deadliest known poisons are found in plants. Some major food plants, eaten by millions of people every day, have toxic parts.|
|185||: Plant Species whose germination is improved by Smoke|
|"Smoke" contains a butenolide compound produced by certain plants when heated, it speeds up or starts the germination of seeds from many different genera.|
|719||: North American Native Ethnobotanicals|
|Including medicinal, dye, fiber, food, construction, ritual|
Some knowledge about growing from seed is necessary to germinate even the easiest seeds.
Most seeds require humidity to germinate, even desert plants like
require that their growing medium remains moist until germination.|
Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet,
the seeds may not get the oxygen they require.
Kalmia latifolia Rubra seeds will usually germinate in 30-60 days, even under good conditions germination may be erratic.
Kalmia latifolia Rubra seeds need to be "overwintered" before they will germinate.
Stratification; cold treatment or vernalization. Seeds of some species need just a couple of weeks, others 3 months. Seeds can be stratified in dampened peat or sand, in a plastic box or bag at 4°C or 5°C in a refrigerator. The seeds should not be frozen or in a wet medium. Very small seeds can be sown on the surface of their growing medium, in pots sealed in plastic bags, and kept in the 'fridge. Many vernalized seeds need light to germinate when they are sown in the "Spring".
(Pre-chill for 3 months).