Ruellia humilis Seeds
Wild Petunia Seeds
DetailsRuellia humilis (Wild Petunia) is a long blooming wildflower with lilac-blue, petunia-like flowers all summer. This plant likes dry to medium moisture in non-clay soil where it receives full to part sun. A good naturalizing species, it reseeds and spreads when happy. USDA zone 4-8.
|Common Name||Wild Petunia Seeds|
|Botanical Name||Ruellia humilis|
|Seed Life Cycle||Perennials|
|Light Requirements||Full Sun, Half Sun / Half Shade|
|Mature Height||12-24" tall|
|Bloom Time||Early to late summer|
|Days to Germination||Cold Stratification - 70 days/Regular Surface|
|Soil Moisture||Dry, Average, Well Draining|
|Soil Type||Sandy Soil, Loamy Soil, Drought/Dry Soil|
|Native To||North America|
|Native To||Eastern United States|
|Ideal Region||Northeast, Southeast, Midwest, Southwest, West, Pacific Northwest|
|Zones||4, 5, 6, 7, 8|
|Advantages||Deer Resistant, Attract Butterflies, Attract Hummingbirds, Bee Friendly, Easy to grow, Extended Bloom Time (more than 4 weeks)|
|Storable||Yes - You can store your seed in any cool (not freezing) dry place that is not subject to extreme temperature variations.|
|Neonicotinoid-Free||Yes - Learn More|
|Ships to Hawaii, Alaska & Canada||Yes|
Step-by-Step Wildflower Seed Planting Instructions
- Check for your last frost date and plant after this has passed. Choose a spot on your property that gets 6 or more hours of direct sun a day unless you are planting seeds for shade.
- Prepare your soil by clearing the area of all existing growth. Simply dig up everything that is growing, turn the soil and rake the area flat. If this is an area that has never before been gardened, you may need to till the area up to remove growth.
- Mix the seeds with sand* for better visibility and scatter the seeds directly on top of the soil. If you are sowing a larger area, we recommend using a seed spreader; if not, you can sow by hand.
- We recommend lightly compressing the seeds into the soil, making sure not to bury them. You can either walk on them, use a board or if you are sowing a larger area, rent a seed roller.
- Water so that the soil is moist, not soaking wet, until the seedlings are about 4-6" tall. After that, the seedlings will survive on natural rains. If you are experiencing very dry weather, we recommend watering occasionally.
View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
Most orders ship within 5 business days.
As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Orders for in-season products ship within 5 business days. Depending upon your order date, we may hold your shipment to combine it with other products on your order, if applicable.
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Comments about High Country Gardens Ruellia humilis Seeds:
I haven't given up all hope yet, but as of late August, my seed have not sprouted. I'm hoping now that the cooler weather has hit that there's still a chance...or maybe in the spring. I'll let you know if anything happens. I tried putting some in the ground and also in a pot....nada.
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USDA Hardiness Planting Zones
To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.
- If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
- If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).
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