How to grow and care for Iris × germanica 'Mer Du Sud'
plant care guide about watering, fertilizing, trimming, repotting, cutting, propagating Iris × germanica 'Mer Du Sud'
Iris × germanica 'Mer Du Sud' 101 - Plant Care Instructions
Bright direct light
16C° ~24C°
Every 7 days
water
How to water Iris × germanica 'Mer Du Sud'
How often should I water?
check Iris × germanica 'Mer Du Sud' 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 Iris × germanica 'Mer Du Sud' need?
Bright direct light
Grow light
Light preference
Iris × germanica 'Mer Du Sud' 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
-22
-22~35℃
45
Houseplants
-15
16~24℃
45
Plants that grow in the wild and those that grow indoors prefer different temperatures. If you grow Iris × germanica 'Mer Du Sud' at home, make sure the temperature is 16~24℃.
Humidity
Ideal humidity
0
40~70%
100
Iris × germanica 'Mer Du Sud' 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
| Characteristic Name | Characteristic Value |
|---|---|
| Lifespan | Perennial |
| Hardiness Zone | 4 - 9 |
Is Iris × germanica 'Mer Du Sud' toxic?
Iris × germanica 'Mer Du Sud' is dangerous to Cat
Cat
Is your plant sick?
Track what happened. We’ll let you know the cause and treatment shortly!
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