But lately, there’s been an idea circulating that these flowers are essentially garden vampires.
Meet the Expert
Do Sunflowers Kill Other Plants?
That’s not just limited tocompanion planting for sunflowers, though.
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When you put any plants together that aren’t well matched, chaos can ensue.
Warner says that if non-companion plants are planted together, it can increase the likelihood of pests and diseases.
Want more gardening tips?
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Do Sunflowers Steal Nutrients?
What Does Allelopathic Mean?
Allelopathy in plants means they release chemicals that interfere with the germination of neighboring plants.
The Spruce / Evgeniya Vlasova
Many of these help ward off certain pests or keep diseases at bay.
Warner has had success with various flower varieties, blackberries, and raspberries in her garden, too.
