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Ruellia humilis Wild Petunia

Ohio Native Plant Natural Range

To view the natural range of Ruellia humilis visit the USDA Natural Resources Conservation Service website.
Wild Petunias by Jim Wohl

Cultivation Information Wild Petunia

Mature Ruellia humilis seed
Height - 12 inchesFlower Color - PurpleBlooms - June - AugSun - Full Sun - Partial Sun Soil - Medium to Dry
Rock Gardens -nice addition to a sunny rock garden
Drainage - Needs well drained garden location
Border - We have several growing on the parameter of a garden under an oak tree, which is on the west side of our property. Best planted in the foreground.
Family - Acanthaceae PerennialHardy Zone - 4 to 9Seeds - Explode up to 10 ft
Late in the fall - keep a close eye on your Wild Petunia seeds, once the seedpod cracks open, seeds will shoot up to 10 feet from the original plant. Seeds mature at different rates, so check them often.
Wild Petunias are perfect for garden borders
Wildlife Significance Wild Petunia
Host plant - For caterpillar of Common Buckeye Butterfly
Pollen Source - Long-tounge bees, leafcutter bees, sweat bees, small carpenter bees, syrphid flies,
Nectar Source - sweat bees, small carpenter bees, butterflies and moths that fly during the day
Detailed information - Visit the Illinois Wildflower website
Propagation Notes Ruellia humilis
Stratifying Seeds
Seed - Collect late in fall once capsule is brown, and begins to split Stratify - Cold/moist storage for 60 days. We use small baggies filled with enough moist vermiculite to cover the seed. Store in refrigerator for 70 days.Alternatively- Sow seed in the fall outdoors. This method works rather well. Creating an inexpensive cold frame protects young seedling from harsh weather and keeps your seed in one location, making identification much easier in the spring Germination - Our seed collected in fall of 2015 had a very high February 2016 germination rate.
Young Ruellia humilis seedlings
Wild Petunia seedling a few weeks old
Wild Petunia seedling a few months old
Seed Provenance Ruellia humilis
Prairie Moon Nursery, Winona, MN - 2014 - Nodding Onion Gardens - 2015 to Present
Ohio Department of Agriculture Nursery Inspection 2010 - 2023
© 2023 Nodding Onion Gardens, LLCColumbia Station, Ohio 44028I

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