Coleus are a tender perennial, requiring an open, sunny position and thrive in well drained soil which has had some well rotted garden compost, peat or manure incorporated. Half hardy that tolerates light frost if kept dry. They produce attractive blue flowers in summer, and their aromatic foliage deters cats. Height and Spread approximately 30x30cm (12 x12in). Unpack your plants immediately and, if dry, stand them for a few minutes in about 2.5cm (1in) of water, until the compost is fully moist again. Your plants have arrived ready for transplanting and, though they may be left for a day or two to acclimatise to the new conditions, they should otherwise be potted on as soon as possible. If you find a fine mesh around the plugs, there is no need to remove this before potting as the roots can easily grow through it. Pot them first into 9-10cm (3½-4in) pots. Use any good multi-purpose compost and set each one so that the top of the plug is just below the surface. Tap the pot to settle the compost but do not over-firm. As soon as you have transplanted your plug plants, water them in well. After that wait until the surface of the compost starts to dry before watering again. Your plants are unlikely to thrive if over-watered. If you have to grow on your plants in a place where they only receive light from one side, such as on a windowsill, turn them regularly so that they grow evenly. Plants should be hardened off during May. Stand them outside in the day and bring them in again on cold nights over about two weeks. When hardened off locate them in their final positions outside. Keep plants moist during the growing season. If planting into containers, a multi-purpose compost is usually best and we recommend that you mix with it water-retaining gel granules and a slow-release fertiliser. Together they will save you time with both feeding and watering, although additional liquid feeding may still be needed later in the season if plants start to lose vigour. To encourage continuous flowering throughout the summer, remove old flower heads