The two most popular species areN.
N. strumosais a true annual that produces one-inch blue or white flowers and grows up to one foot tall.N.
Even more common as garden plants are the hybrid forms derived by crossing variousNemesiaspecies.
Usually planted as a garden-ready nursery plant in spring, it’s also easy to grow from seed.
Gardeners in warm-winter climates often seed directly into the garden in fall for winter bloom.
Nemesia doesn’t transplant well, so choosing plants that are not yet flowering will reduce stress.
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If growing from seed, start them seven or eight weeks before the last expected frost date.
Choose a partially shaded area of the garden with rich, moist soil and adequate drainage.
Soil
Nemesias require soil that’s moist but well-drained, as well as rich in organic matter.
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Soil can be amended with sand, vermiculite, or perlite to improve its drainage.
Potted plants do well in an ordinary commercial potting mix amended with sand, vermiculite, or perlite.
Too much water will lead to stem rot.
Temperature and Humidity
Nemesia will grow best in cooler temperatures.
These plants work well as winter annuals in frost-free regions.
It works well in cool, dry climates if its soil moisture needs are met.
Fertilizer
Feed these plants once in the spring with a balanced time-release fertilizer.
Use pots or trays filled with a commercial seed-starter mix or fine vermiculite.
Dampen the spoil and place the containers in a location with indirect light at 55 to 65 degrees Fahrenheit.
(The seeds need to be covered with soil to germinate.)
you’re able to expect the seeds to sprout in about five to 10 days.
Continue growing them in bright light until planting time after danger of frost has passed.
Potting and Repotting Nemesia
Nemesias make good specimens for outdoor containers.
Use a large, well-draining container.
ensure to monitor potting mixture moisture and water whenever the top inch becomes dry to the touch.
Root rot reveals itself when stems collapse at ground level.
Less watering and a sunnier location can help prevent such rot.
Powdery mildewcan also be a problem at times.
Radically cutting back the stems will prompt the plant to become more bushy and full.
This treatment is especially useful for container plants and hanging baskets.
If you have poor soil, verify it is amended to improve its porosity and drainage.
Nemesia strumosa.North Carolina State Extension Plant Finder
Nemesia caerulea.Missouri Botanical Garden Plant Finder
