Spacing annual flowers that are already mature.

Provo, UT

Hi, I've never planted flowers before, or transplanted them. I have a question about the spacing of flowers. For example, when it says to space alyssum 8-10 inches apart, does that mean 8-10 inches away from other alyssum plants, or from any other plant?

If the plant is already its full size, can I put them closer together?

Piedmont, SC(Zone 7b)

The spacing you are given is so the plant has room to spread out. Sometimes I will place them a little closer if I want a larger clump. Or you can place them further apart if you want to. That is just a guide to let the plants roots have room to spread out. Sometimes placing them to close can choke the plant and it may not survive. About your question, it means both. 8 to 10 inches from each other and from other plants. If you are going to plant the alyssum close to another plant you may need to give it a little extra room if the plant is larger to give the larger plant room for its roots. It is very important to have a good root system to have strong plants. What kind of soil do you have?

Indianapolis, IN(Zone 5b)

That's kind of a hard question. Some store-bought annuals give spacing requirements for full grown plants, but that could at the end of the season. There are so many variables to the size of the plant, plus personal preference. I like my annuals to be full and close together, but I like my perennials to be a little further apart. I've always taken it to mean from the center of the plant to the next one should be 8-10". It also depends on what kind of plants are next to it. Are you seeding alyssum or buying from the store? My personal preference for store-bought is about 6". When I seed, I just thin as needed.

Indianapolis, IN(Zone 5b)

Smokey-got it the same time I did !

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