It seems like you might be referring to Dahlia plants. Dahlias are popular ornamental plants known for their large, colorful flowers and diversity of forms. They belong to the Asteraceae family and are native to Mexico.

Features of Dahlia Plants:

1. Flowers:

   • Color: Dahlias come in a wide range of colors, including red, pink, orange, yellow, white, and purple. Some varieties also feature bi-color or multi-color blooms.
   • Shape: The flowers vary greatly in shape and size, from small pom-pom types to large, dinner-plate-sized blooms. They can be single, semi-double, or fully double.
   • Blooming: Typically bloom from midsummer to frost, with peak flowering in late summer to early autumn.

2. Growth Habit:

   • Form: Dahlias can be bushy or sprawling, depending on the variety. They grow from tubers that produce multiple stems.
   • Height: Heights vary widely, from dwarf varieties at 12-18 inches tall to giant types reaching over 4 feet.

3. Leaves:

   • Shape: Leaves are usually lobed and have a textured surface.
   • Color: They are generally green, though some varieties may have dark or purple-tinged foliage.

Care Tips for Dahlia Plants:

1. Sunlight:

   • Dahlias prefer full sun, requiring at least 6-8 hours of direct sunlight daily for optimal blooming.

2. Soil:

   • They thrive in well-drained, fertile soil. Adding compost or well-rotted manure can improve soil fertility and drainage.

3. Watering:

   • Keep the soil consistently moist but not waterlogged. Water at the base of the plant to avoid wetting the foliage, which can lead to disease.

4. Fertilizing:

   • Feed Dahlias with a balanced fertilizer or one high in phosphorus to promote blooming. Avoid high-nitrogen fertilizers, which can lead to excessive foliage growth at the expense of flowers.

5. Pruning:

   • Regularly deadhead spent flowers to encourage continued blooming. Pinch back the tips of young plants to promote bushier growth and more blooms.

6. Pest and Disease Control:

   • Watch for pests such as aphids, spider mites, and slugs. Monitor for fungal diseases like powdery mildew and rust. Ensure good air circulation and avoid overhead watering to reduce disease risk.

Uses and Benefits:

• Ornamental: Dahlias are popular in garden beds, borders, and containers for their vibrant colors and diverse flower forms. They are also a favorite choice for cut flower arrangements.
• Long Blooming Season: Their extended blooming period adds color to gardens late into the season.

If you need more information about Dahlia plants or have specific questions about varieties, care, or where to buy them, feel free to ask!