joan smyth Staff asked 13 years ago
Every year I look forward to planting up window boxes, using mostly petunia, calibrachoa and lobelia and marigold. I’d really appreciate any tips you might have to get a really nice healthy and long lasting display. I wonder what might be the best type of compost to use. I’ve seen the ‘miracle grow’ brand which is especially for containers and baskets but it’s quite expensive and I have a lot of containers to fill. Spacing of plants is another query I have.I’m inclined to sometimes become over enthusiastic and put too many plants in the window box. I was also wondering about vermiculite and perlite. Would adding them to the compost help to give a better flower display, I wonder?