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Generally speaking, most cultivated plants are happy in soils with a pH of 6.0 to 7.5. Since 7 is neutral on the pH scale, anything slightly more acidic or slightly more alkaline shouldn't make much difference to most plants. There are some real acid-lovers, such as blueberries, azaleas and rhododendrons, and there are some plants that prefer alkaline soils, such as lilac and cacti. Most areas with high rainfall will have acidic soils and areas with little rainfall will have alkaline soils. That's just a general observation, and soils may vary. Rose of Sharon will be happy with a general purpose fertilizer but if you have an acidified fertilizer such as Miracle Gro or Miracid, you can use it for your Rose of Sharon. Spring feeding is best, but you can feed now if you missed the spring feeding. Enjoy your garden. |
