Here's When You Should Plant Daylilies For A Garden Full Of Gorgeous Color Why is my spider plant so much greener than most others I've seen? : r houseplants Why and How to Repot Succulents THE NEXT GARDENER Thenextgardener Even in a winter region like Canada, you can still grow a tropical vegetable like bitter melon. Here in zone5b we started our seeds indoors in April using loose soil mix like coir and worm castings.