Can you root mint cuttings in water? Yes, easily. Mint cuttings in water root from 3–5 inch (8–13 cm) soft stem tips with the lower leaves removed and one or two nodes submerged. Set the jar in bright, indirect light at about 70°F (21°C) and change the water twice a week. Roots often appear within 1–2 weeks.
Do plants need darkness? Most plants do better with a daily dark period. Research shows tomatoes, eggplants and several other crops develop leaf yellowing and injury under 24-hour light, and short-day plants like holiday cactus need long nights to flower. Cucumbers and some leafy crops tolerate longer days. For home grow lights, 14–18 hours on and 6–10 hours off is a safe range.
What are the best grow lights for peppers? The best grow lights for peppers are full-spectrum LED fixtures strong enough to deliver a daily light integral (DLI) of at least 15, and preferably over 20, mol/m²/day for fruiting plants, per Michigan State University. Indoors, that’s roughly 350–400 µmol/m²/s for 14–16 hours. Seedlings need less: about 10–15 mol/m²/day.
How long do LED grow lights last? Quality LED grow lights are commonly rated around 50,000 hours before output falls to about 70% of new, according to Oklahoma State University Extension. At 16 hours a day that’s roughly 8.5 years; at 12 hours, about 11 years. Heat, drive current and the driver usually decide real-world life, so a fixture can dim or fail sooner.
Can you propagate pilea in water? Yes. Pilea in water roots easily from pups cut at or just below soil level and from stem cuttings with a bit of stem attached. Rinse off any soil, set the base in clean water with the leaves dry, and keep it in bright, indirect light. Pot once roots reach 1 inch (2.5 cm).
Can you propagate string of turtles in water? Yes. String of turtles in water roots from 2–3 inch (5–8 cm) stem pieces with a bare node or two dipped in clean water and the leaves kept dry. Keep the glass at 68–75°F (20–24°C) in bright, indirect light and refresh the water weekly. Small roots usually form within a few weeks; pot the cutting before the stem softens.
Can you propagate schefflera in water? Yes. Schefflera in water roots from a 4–6 inch (10–15 cm) semi-woody tip cutting with two or three leaves and at least one node underwater. Keep it warm, around 75–80°F (24–27°C), in bright, indirect light and change the water weekly. Roots usually appear within several weeks; pot the cutting when they reach 1–2 inches (2.5–5 cm).
Can you propagate string of pearls in water? Yes, though soil is more reliable. For string of pearls in water, take a 3–5 inch (8–13 cm) stem, strip the pearls from the bottom inch, let it callus for a day, then rest only the bare stem in water with the pearls above the rim. Pot at the first roots, because this succulent rots easily.
Can calathea grow in water? Calathea in water doesn’t work from leaf or stem cuttings, because new plants grow only from the rhizome. Instead, divide a clump so each piece has roots, rhizome and a few leaves, rinse off the soil and set the roots in clean, low-mineral water. Keep it at 65–75°F (18–24°C) with high humidity and indirect light.
Can you root lavender cuttings in water? Yes, but it’s less reliable than a gritty mix. Lavender cuttings in water root best from 3–4 inch (8–10 cm) non-flowering tips with the lower leaves stripped and only the bottom inch (2.5 cm) submerged. Change the water every two days, keep it bright and warm, and pot at the first short roots, because lavender rots easily when wet.