How to grow and care for Clethra alnifolia L.
plant care guide about watering, fertilizing, trimming, repotting, cutting, propagating Clethra alnifolia L., White alder 'Ruby Spice'
Clethra alnifolia L. 101 - Plant Care Instructions
Bright direct
16C° ~24C°
Every 7 days
Water
How to water Clethra alnifolia L.
How often should I water?
check Clethra alnifolia L. Every 7 days if it needs water. when it’s very cold(below 5℃), water less frequently
When do I need to water?
the top 2-3 inches of soil is dry
Light & Location
How much light does a Clethra alnifolia L. need?
Bright direct
Bright indirect
Medium
Grow light
Low
Light preference
Clethra alnifolia L. likes Bright indirect light, Grow light, Bright direct light, Medium light, Low light day. The brighter the space, the better this plant grows.
Check if there’s an optimal place in your house!
This plant prefers
500 ~ 20K lux to thrive!
0
20K~
500
20K
Temperature
Natural habitat
-22
-22~32℃
45
Houseplant temperate preference
-15
16~24℃
45
Plants that grow in the wild and those that grow indoors prefer different temperatures. If you grow Clethra alnifolia L. at home, make sure the temperature is 16~24℃.
Humidity
Houseplant temperate preference
0
40~70%
100
Clethra alnifolia L. prefers humidity about 40~70%. If necessary, increase humidity by misting, humidifier.
Fertilize
When should I fertilize?
Only when your plant is healthy!
How frequently should I fertilize?
1-2 times in growing season. A pinch for a small pot.
Characteristic
Clethra alnifolia L. is a member of Clethraceae.
| Characteristic Name | Characteristic Value |
|---|---|
| Lifespan | Perennial |
| Hardiness Zone | 4 - 8 |
| Taxonomy Name | Taxonomy Value |
|---|---|
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Ericales |
| Family | Clethraceae |
| Genus | Clethra |
| Species | Clethra alnifolia |
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