Why Are My Sun Reblooming Weigela Leaves Turning Brown?

Question

I don’t believe I have over watered nor over fertilized this plant. We have had seven straight days of 90-plus degree heat with no rain. It bloomed beautifully in May and has not bloomed since.

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Answer 1

These will require, consistently, moist soils. It would seem that this could be due to dry soils. Make sure to keep it moist, without letting it dry out, but not saturated. Daily, shallow waterings may be necessary during conditions like this.

I would suggest monitoring with a meter. This will cut all doubt. You want to keep the surface slightly moist, while letting the deeper parts go between wet and slightly moist. This means a long slow water, with shorter surface watering between.

Here is an article that will help you to monitor soil moisture:

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm

This article will help you with the care of the shrub:

https://www.gardeningknowhow.com/ornamental/shrubs/weigela/growing-weigela.htm