Grow Light for Hamelia: Firebush in Containers Indoors
A grow light for hamelia helps firebush hold its leaves plus red tubular flowers through winter indoors. NC State Extension notes firebush grows in full sun to partial shade plus comes indoors in temperate climates for winter, while University of Missouri Extension explains how electric light fills the gap.
The short answer
A grow light for hamelia works well as a full spectrum LED hung 6 to 12 inches above the plant tips. University of Missouri Extension notes plants with no window light need 16 to 18 hours a day. University of Maryland Extension advises no more than 16 hours in total. Put the lamp on a timer.
How much light does firebush need indoors?
NC State notes firebush grows in full sun to partial shade. Missouri notes high light plants need about 1,000 footcandles. University of Minnesota Extension notes too little light means no flower buds.
| Factor | Target | Why |
|---|---|---|
| Lamp height | 6 to 12 inches above tips | Missouri plus Minnesota |
| Hours with no window light | 16 to 18 | Missouri |
| Hours with some window light | 12 to 14 | Missouri |
| Upper limit | 16 hours | Maryland |
| Lamp type | LED | Red plus blue light plants need, per Missouri |
Source: Missouri, Maryland plus University of Minnesota Extension.
Where should a grow light sit for firebush?
Missouri plus Minnesota advise placing flowering plants 6 to 12 inches from the light. Hang the fixture so it can rise with the plant.
How many hours should the light run?
Missouri notes plants with no outdoor light need 16 to 18 hours a day, while 12 to 14 hours may do if some window light reaches them. Maryland advises no more than 16 hours in total.
How to: step by step
- Bring firebush inside before cold weather.
- Place it in your sunniest window.
- Add a full spectrum LED above the plant.
- Hang the light 6 to 12 inches above the tips.
- Run the light on a timer.
- Water more often in a pot, as NC State notes.
Troubleshooting
Long, weak stems: too little light. Lower the lamp or add hours.
Pale or scorched leaves: Maryland plus Minnesota note too much light can scorch leaves. Lift the lamp.
Leaf drop in winter: cold drafts or low light. Move it from doors plus add light.
For lamp setup see grow lights for cannabis, led light distance cannabis plus grow light timers. Browse cannabis seeds. Kind Seed Co also stocks cannabis seeds.
Sources
- Hamelia patens (firebush), NC State Extension Gardener Plant Toolbox
- Lighting for indoor plants, University of Maryland Extension
- Lighting indoor houseplants (G6515), University of Missouri Extension
- Lighting for indoor plants and starting seeds, University of Minnesota Extension
FAQ
Can firebush grow under a regular LED bulb?
A household LED gives some light, but a full spectrum grow light is brighter plus easier to aim. Missouri notes LED plant lights can emit the red plus blue light plants need. Hang the lamp 6 to 12 inches above the tips for the most useful light.
Should the light run all night?
No. Maryland advises no more than 16 hours of light in total each day plus notes too much light can turn leaves pale plus brown. Missouri notes 16 to 18 hours suits plants with no window light. A plug in timer gives firebush a steady day length.
Why is my firebush not flowering indoors?
Low light is a common cause. University of Minnesota Extension notes flowering plants given too little light fail to form flower buds. NC State notes firebush grows in full sun to partial shade outdoors, so a grow light 6 to 12 inches above the tips helps recreate that brightness.
Can firebush live indoors all year?
NC State notes firebush comes indoors for winter in temperate climates plus grows 2 to 3 feet tall as an annual. It can go back outside once frost danger passes. Indoors, give it a grow light plus the sunniest spot you have to hold its leaves through winter.
How often should potted firebush be watered?
NC State notes firebush needs more water when grown in containers than in the ground. Check the soil often plus water when the top inch feels dry. Indoor heat plus a grow light dry pots faster, so check more often in winter.
