Q. Yesterday I came home from the local nursery with a plant called an Imperial Taro. It is in the usual small container from the nursery. The tag says it's mature height is 30". I have a pot I want to plant it in that is big enough for when it is full grown. Is it OK to go ahead and plant it in such a big pot to start off? Or should I pot up gradually? I thought I heard something about "Don't put in too large of a pot"? Can you clear things up for me please? Also any growing tips would as always be greatly appreciated.

A. Repot into a new clean pot with a diameter 2" in diameter greater than the present one even though taro is a fast grower. Keep in that pot until the roots have form a tight web on the interior and show the need to spread into fresh potting mix in about 6 months. Maximum diameter should be around 12". Plant in a very well-drained potting mix with added perlite or gravel as taro loves lots of water but too much can lead to rot. Shallow planting will result in corms developing above the ground surface and these exposed corms are more likely to be damaged by insect pests and rodents. Water soon after planting to remove air pockets. Fertilize every two months during the growing season with a basic outdoor 20-20-20. Nitrogen seems to be the main requirement. Like all tuberous crops taro has a high requirement for potassium which is essential for starch formation. Mulching is beneficial provided the soil is not too high in organic matter already. As mulch breaks down it improves growth rates by providing nutrients and improving soil structure and soil moisture. Despite its hardiness taro is susceptible to attack by slugs caterpillars and snails which may damage corms creating wounds which provide entry of secondary disease organisms. Treat immediately and keep the pots or garden areas weed-free to eliminate their hiding places.