Each tier comes with a 22-by-11-inch watertight plant tray made of BPA-free plastic. Canopy fixtures are easy to adjust on the uprights with a hand knob clamp, and provide a 16-inch lamp-to-tray clearance. Features Red light or mixed light bulbs are suitable for promoting bud formation in flowering plants as well as keeping the plants shorter. Having the lights on for a sufficient number of hours is also an important factor – see the guidelines below for each set up. Simple lighting system Direct sow where they are to grow from early spring in any well-drained soil. Sow seeds thinly over the soil, lightly covering. Germination in 30–90 days at 10–15°c

Look for lights with ‘veg’ and ‘bloom’ pre-set settings . These will choose the right combination of lights for each stage of the plant’s cycle. It's important to factor in efficiency as well as wattage. LEDs with higher efficiency levels produce more light for a given wattage. What growing light should you use during propagation? For plants in vegetative stage: Hang roughly 60 – 80 cm above plants (for approximately 18 hours/day) Sow in spring or autumn. Can be direct sown. Lightly cover the seeds with compost, as they require light to germinate. Germination in 30–90 days at 10–15°c Fluorescent tubes come in varying lengths and give much better coverage than CFLs, providing enough exposure for several standard seedling trays – depending on the length of the tubes.

Houseplants for different indoor light conditions

Foot-candle is the amount of light received by a 1-square-foot surface located one foot away from a light source equal to one candle. It’s not used as frequently though you may find this measure in older reference books. It may help to soak seeds for a day before sowing. Sow in late spring. Germination in 30 days at 13–18°c Although the bulbs are cool, the housing of the light fixtures can get hot after a few hours of use Hanging your lights too low can burn your plants, but hanging them too high can leave them stretching for light, and weak,” says Kansas City-based Melissa Lallo Johnson, host of Art of Gardening, a vlog and podcast that features influential gardeners from around the world. The standard placement recommendation for incandescent grow lights is at least 24 inches from plants. Since fluorescent and LED lights have lower heat outputs, they can be placed 12 to 18 inches away from plants. Indoor garden systems with extendable lights are helpful in ensuring that your plants do not burn while they grow. Surface sow as require light to germinate. Germination may be slow and erratic. Germination within 30 days at 18°c

Sow in spring or autumn. Lightly cover the seeds with compost. Require a period of cold, moist stratification. Germination can take up to one year at 10–15°cSow in autumn or spring, lightly covering the seeds. Germination can take more than 90 days at 16–21°c In environments with less light, plants grow more slowly and use less water. Avoid overwatering by feeling the soil. The 6400K LED strips provide full brightness (1,300 lumens) with no appreciable heat output, and are integrated directly into the fixture so there are no bulbs to replace. A flip of the color-coded toggle switch selects the appropriate color. Direct sow in prepared soil in early spring or autumn, lightly cover seeds. Germination in up to 30 days at 16–21°c