Biên dịch: Dũng Cá Xinh
Biên tập hình ảnh và dàn trang: Dũng Cá Xinh
IV – CHĂM SÓC VÀ NHÂN GIỐNG – CARE AND CULTIVATION
16. Nhân giống bằng hạt (Propagate from seed)
PROPAGATE FROM SEED
Raising plants from seed is easier than you may think, but be prepared to pamper the seedlings for a couple of months while they are developing into mature plants, as any periods of drought could kill them. Annual plants (which grow, flower, and die in the same year) are good choices for beginners, and include the Persian violet, busy lizzies, and coleus (shown here). Buy fresh seeds every year for the best results.
WHAT YOU WILL NEED
PLANT
- Packet of house plant seeds
OTHER MATERIALS
- Seed and cutting compost • Vermiculite
TOOLS
- Small seed tray with clear plastic lid
- Sieve, for compost (optional)
- Plant labels
- Small spoon
- Module seed tray or small plastic pots
- Watering can fitted with a rose attachment
- Larger pots
- Multipurpose compost
1 – Almost fill a seed tray with damp seed compost. Press the upturned lid of the seed tray on top to create a flat surface and to remove any air gaps. Sow seeds evenly on the surface.
2 – Cover the seeds with vermiculite or a very thin layer of sieved seed compost. Label, pop on the lid, and set in a bright area out of direct sun; the seeds need light to germinate.
3 – Keep the compost moist, but not wet. Remove the lid as soon as the first leaves emerge, and leave the seedlings to grow on until they have formed 4–6 new leaves.
4 – Fill a module seed tray or plastic pots with seed compost. Make a hole in the compost with the spoon, then use it to scoop out a seedling, keeping its roots intact. Hold it by its leaves and plant it into one of the modules.
5 – Gently firm around the base of the seedling. Repeat until the whole tray is filled with seedlings, then water with a can fitted with a rose attachment. Keep the compost moist but not wet; overwatering may rot the seedlings.
6 – Place the tray or pots of seedlings in a warm, bright area out of direct sun to grow on. Turn them every day or two so that the plants grow evenly and do not stretch towards the light and become tall and leggy.
7 – When the seedlings are about 10–15cm (4–6in) tall, transplant them into larger pots of multipurpose compost. Nip out the stem tips to encourage bushier growth (see p198). They will soon grow into mature plants, ready to display.