Growing Bulbs In Pots For Indoors Growing Guide

Growing Guide

GROWING BULBS IN POTS FOR INDOORS

Many types of bulbs can be forced successfully in containers, the most favourable and reliable being spring flowering bulbs such as Hyacinths, Tulips, Daffodils, Jonquils, Freesias and Scilla. With a little effort the results are very rewarding.

SELECTING POTS: Any type of pot, trough or other container is suitable provided they are at least 12cm deep and have adequate drainage holes in the bottom.

SOIL FOR FORCING: A friable soil which has been manured beforehand is best as this assist drainage. A good potting mix or bulb fibre is also suitable. Heavy soils need to be lightened by mixing through some potting mix, sand or peat moss.

PLANTING: Only one variety of bulbs should be planted to each pot. This way all bulbs in the pot will flower together. In larger tubs or troughs, plant in small groups of a single colour. When planted in pots, bulbs can be spaced as close as 2-3cm apart.

Before planting, place some stones or other coarse material over the drainage holes to prevent blocking and stop soil from flowing out. Fill pots with soil to a level so that when bulbs are positioned, their tips are just below the rim. Add the remaining soil, firming this around the bulbs until the soil level comes to 1/2cm below the rim. Water well until all the soil is moist.

AFTER PLANTING: The potted bulbs now need a cool growing period to allow them to develop roots, stem and bud, and must be stored using one of the following methods: The common method is to place the pots in a cool, dark position such as under the house, in a dark, shady area, in a cupboard inside the garage or similar. To ensure complete darkness, pots can be covered with a large paper bag. The soil should always be kept moist, but not too wet. The second method is to set the pots into a well drained position in the garden and cover with 5-8cm of friable soil.

After about 9-10 weeks, or when the shoots have reached a height of around 6cm, the pots can be removed and placed in a warmer, semi-dark area. After four or five days, transfer pots to full light indoors for flowers to bloom. Water regularly.

FLOWERING: Temperatures between 18-22 deg. C. are recommended for maximum flower life. Keep away from heaters and draughts. When placed near a window, pots may need to be turned occasionally to keep flowers erect.

AFTER FLOWERING: Move pots outside to a shady position and cut off the dead flowers. Keep soil moist until the foliage has died down. Bulbs can then be removed and should be planted out in the garden the following season. Forced bulbs will not flower indoors two years in succession.

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