Selection of zinnia varieties Plant giant zinnias that can grow up to four feet.
Plant dwarf zinnia seeds that can grow up to 10 inches tall.
Height / Width: Varies by species.There are dwarf varieties 6 to 12 inches tall and wide, and others grow up to 4 feet tall and 1 to 2 feet wide.
Zinnias are one of the easiest flowers to grow because they grow quickly and bloom widely. Zinnias are annuals, so they will grow and produce seeds for one season, but the original plant won’t return in subsequent years.
Attract. For fuller, busier zinnias, whether you are planting a short or tall variety, cut an inch off the plant’s growth tips when it has stabilized and is accelerating growth. The plant branches out where it is compressed.
Zinnias produce colorful summer flowers that last until fall. Easy Flowering Zinnia Plants (Zinnia spp.) They grow as annual flowers in United States Department of Agriculture climates.
Zinnias (Zinnia spp.) Simply re-seed and create a yard and garden every summer. Ancient varieties grown for over 50 years are openly pollinated and produce plants identical to those of their parents. Zinnia hybrids are also sown, but they can be very different.
You can plant them throughout July to bloom until frost. 5 Zinnias grow in large containers, but not well in small pots. Choose a pot that is at least 12 inches long for best results. Taller varieties, such as State Fair, need larger pots.
Dry the bed twice a day until the seeds germinate. * Water the zinnias at ground level to prevent mold. When they are 3 to 4 inches tall, water them thoroughly a few times a week depending on the weather. Zinnias don’t tolerate drought well, but they love drier soil.
Water and Feed
Depending on the weather, the approximately 20 species of the genus Zinnia usually bloom for 60 to 70 days from the time the seed is planted.
Start with zinnia seeds indoors to transplant outdoors, about 6-8 weeks before the last frost date (see Starting Indoor Annuals). In warmer climates, sow seeds directly into planting areas and lightly cover them with soil.
The seeds are shaped like an arrowhead, pointed at one end and wider at the other, each with a raised point running down the back. They are 3/8 to 1/2 inch tall when harvested from medium sized zinnias and usually just under 1/4 inch wide at their widest and brownish in color.
Zinnias are annuals. Frost kills them in early fall, and gardeners should replant them in late spring. Gardeners can sow seeds directly in well-drained soil outdoors after the last spring frost. Subsequent plantings every two to three weeks ensure a long season of bright colors.
Zinnias attract and benefit from pollinators. The zinnias themselves are pollinated by insects, most often bees and butterflies. Bright colors attract pollinators to a garden. Monarch butterflies in particular love and pollinate zinnias and use them as food and to lay eggs.
To encourage further flowering of the petunia, old flowers should be removed from ■■■■ heads to encourage new flowers rather than seed production.
Zinnia seeds can remain viable for about 5 to 6 years.
The seeds can be planted indoors 68 weeks before the last frost, and the plants can easily be transplanted into your garden afterwards. Remember, germination will be less successful in cold soil. It is also best to soak the dried seeds in water for 46 hours before planting them.
- Stop the zinnias in late summer to allow the flowers to develop seeds.
- Take small paper or plastic bags with you into the garden in the fall, preferably in dry weather and little wind.
- Keep a bag or container under each seed head and use the shears to cut the seed heads and drop them into the container.