How to grow and care for Penstemon barbatus (Cav.) Roth
plant care guide about watering, fertilizing, trimming, repotting, cutting, propagating Penstemon barbatus (Cav.) Roth, Golden-beard penstemon, Red beardtongue, St. joseph's staff
Penstemon barbatus (Cav.) Roth 101 - Plant Care Instructions
Bright direct light
16C° ~24C°
Every 7 days
water
How to water Penstemon barbatus (Cav.) Roth
How often should I water?
check Penstemon barbatus (Cav.) Roth 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
When is the Dormant period?
it goes into dormancy in the Winter. during the period, 1.5~2x the watering interval you use in the warm season.
Light & Location
How much light does a Penstemon barbatus (Cav.) Roth need?
Bright direct light
Grow light
Light preference
Penstemon barbatus (Cav.) Roth likes Bright direct light, Grow light day. The brighter the space, the better this plant grows.
Check if there’s an optimal place in your house!
This plant prefers
2K ~ 20K lux to thrive!
0
20K~
2K
20K
Temperature
Natural habitat
-27
-27~35℃
45
Houseplants
-15
16~24℃
45
Plants that grow in the wild and those that grow indoors prefer different temperatures. If you grow Penstemon barbatus (Cav.) Roth at home, make sure the temperature is 16~24℃.
Humidity
Ideal humidity
0
40~70%
100
Penstemon barbatus (Cav.) Roth prefers humidity about 40~70%. If necessary, increase humidity by misting, humidifier.
Fertilize
Collective Knowhow
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
The taxonomic classification of Penstemon barbatus (Cav.) Roth is as follows. - Kingdom: Plantae, Phylum: Tracheophyta, Class: Magnoliopsida, Order: Lamiales, Family: Plantaginaceae, Genus: Penstemon, Species: Penstemon barbatus
| Characteristic Name | Characteristic Value |
|---|---|
| Lifespan | Perennial |
| Hardiness Zone | 3 - 9 |
| Taxonomy Name | Taxonomy Value |
|---|---|
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Plantaginaceae |
| Genus | Penstemon |
| Species | Penstemon barbatus |
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