How to Grow Chinese Forget Me Not Seeds
Grow Guide #2339
Binomial name: Cynoglossum amabile
Life Cycle: Annual
This 'How to Grow' guide details everything a home gardener needs to know to plant, grow and care for Chinese forget me not (Cynoglossum amabile).
When to Sow Chinese forget me not Seeds
Chinese forget me not is a warm season flower. Use the table below to identify the best time of year to sow Chinese forget me not seeds in your climate.
Chinese forget me not plants are best grown in full sun or part shade. Choose a location that will receive at least 3 hours of full sun each day.
Chinese forget me not plants need a well drained soil enriched with plenty of organic matter. Prepare soil by weeding it thoroughly, digging it over to loosen it and adding aged animal manure or compost. Keep the area free of weeds until planting. Learn more about preparing soil for planting here.
Chinese forget me not plants can be grown in containers. If possible choose a variety that’s recommended for container growing. Use a good quality potting mix and make sure your container is large enough for mature plants; a minimum of 10 litres is recommended for Chinese forget me not. During the growing season, keep in mind that container grown plants may need additional fertiliser to encourage healthy growth.
How to Sow Chinese forget me not Seeds
Chinese forget me not seeds do not require any treatment (eg soaking, stratification) before sowing.
Chinese forget me not seeds grow best when they are sown directly into the garden.
- Sow seeds directly in the garden 8mm deep and 30cm apart.
- Keep soil moist but never wet or dry.
- Seeds should germinate in around 5-8 days at a soil temperature of 18-21°C.
- Young seedlings will need protection from pests, pets and weather until they are established.
Tip: Chinese forget me not seeds can also be sown in the less formal ‘scatter seed’ method. Simply roughen the soil, scatter seeds evenly over the surface, then smooth the soil over lightly to cover the seeds.
How to Grow Chinese forget me not
Chinese forget me not plants may need watering during the growing season. Water when the soil is dry about 5cm below the surface (test this by scratching away a little soil with your finger). Water deeply in the early morning or late afternoon. Avoid watering the leaves of plants to avoid fungal diseases. Learn more about watering here.
If soil was well prepared no extra fertiliser should be necessary. In poor soil or to give your plants an extra boost, application of a high-potassium fertiliser or one formulated for flowering plants can be beneficial:
- Apply slow release fertiliser at the recommended rate when transplanting or when seedlings are 5-10cm tall.
- Apply liquid fertiliser at the recommended rate and frequency while plants are fruiting or flowering.
Optional: To give plants room to grow, thin seedlings when they are large enough to handle. Pull out any weak or small seedlings so plants are spaced about 30cm apart.
Chinese forget me not plants should flower in approximately 75-85 days.
Deadhead Chinese forget me not flowers regularly during the growing season. Using sharp secateurs or snips cut fading or dead flowers off just above a set of leaves. Removing old flowers regularly will encourage plants to produce more flowers. Learn more about deadheading flowering plants here.
If growing Chinese forget me not for cut flowers, use sharp snips or secateurs to cut the longest stems possible, removing the lower leaves and placing the stems immediately in a clean bucket of water. Learn more about cutting and conditioning homegrown flowers here.
Common Problems when Growing Chinese forget me not
Like all plants, Chinese forget me not is susceptible to some pests, diseases and other problems. Below is a list of the most common problems gardeners encounter when growing Chinese forget me not plants:
- Aphids are small (2-4mm long) sap-sucking insects that congregate on the new shoots or the undersides of leaves. They can cause leaves to wilt or become discoloured, and also excrete honeydew which can attract ants and other insect pests. To manage aphids, remove them by spraying with a garden hose, apply a soap or alcohol spray, or encourage predatory insects to your garden. Read more about aphids here.
- Downy mildew is a fungal disease that causes yellow to grey-brown patches on leaves, especially the undersides. Water plants at soil level (not on the leaves), remove and destroy affected leaves and do not overcrowd plants to ensure adequate air flow. If problems persist, spray with a homemade milk spray or fungicide.
- Powdery mildew is caused by fungal spores reproducing on the leaves of plants. First showing as white spots on leaves, affected areas can spread quickly to cover the entire leaf surface. While rarely fatal, powdery mildew can reduce yields. Water plants at soil level (not on leaves) to prevent spreading spores, allow good air flow between plants, remove affected leaves and if necessary spray with an appropriate fungicide or homemade spray. Read more here about powdery mildew here.
- Slugs and snails are molluscs that feed on tender leaves and shoots, mostly at night, leaving slimy trails behind them. Control them by removing their hiding places, keeping free range poultry, collecting them by torchlight or by placing traps. Read more about slugs and snails here.