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Growing Zinnias From Seeds Plant the seeds only about ¼-inch deep. You’ll see seedlings sprout in four to seven days. Once the seedlings reach about three inches tall, thin them so that they’re 6 to 18 inches apart to maximize air circulation, a key to keeping zinnias looking good all season.
Are zinnias easy to grow from seed?
Zinnias are easy to grow directly-seeded into the garden. For sooner blooms, start seeds indoors 4 to 6 weeks before your last frost date.
How long does it take to grow zinnias from seed?
Zinnias typically take around 2 months from seed to flower, although this can change depending on weather conditions. Here are some additional tips to grow zinnias: Choose a bright and sunny spot for your zinnias. Cover zinnia seeds with just ¼ inch of soil because they need light to germinate.
Should I soak zinnia seeds before planting?
It is recommended that you only soak most seeds for 12 to 24 hours and no more than 48 hours. After soaking your seeds, they can be planted as directed. The benefit of soaking seeds before planting is that your germination time will be reduced, which means you can have happy, growing plants faster.
Do zinnias need full sun?
Zinnias work fast. Zinnias’ pointy seeds, shaped like little arrowheads, require only basic garden prep to sprout: sow them in well-drained soil, where there’s full sun and lots of summer heat, and you’ll have tiny seedlings in days, with flowers powering up in just a few weeks.
How many zinnia seeds are in a hole?
Plant seeds 1/4″ deep and 24” apart, using 3 seeds per hole. Keep the soil evenly moist until the seeds germinate in 8 – 10 days. Once the seedlings reach 2″, thin out so you have individual plants spaced 24” apart. Water regularly allowing the soil to go nearly dry between each watering.
How many seeds do you put in each hole?
Don’t exceed three seeds per hole. If more than one germinates, snip off extras at the soil line also. This prevents disturbance of the seedling roots on the one you’ll continue growing out when thinning. Don’t add more than one large seed to a hole.
Why are my zinnia seedlings dying?
The most common cause of early seedling death is “damping-off,” a fungal disease which affects the new plant stem just at soil level. The stem becomes brown, rots and the little plant topples over and dies. Damping-off fungi are more of a problem in cold soils with poor drainage, and in conjunction with overwatering.
How many zinnias are in a plant?
Zinnias do not need refrigeration. Avg. 20–30 stems per plant, though this can vary depending on how long you cut your stems. MARKETING: Zinnias can be bunched and sold separately by color or variety or they can be used in mixed bouquets.
Why are my zinnia seeds not sprouting?
Sun. Blooms produced by zinnias require a great deal of energy from the plant. Too little sunlight for too long will prevent new zinnias from germinating and seedlings from developing.
Why won’t my zinnia seeds germinate?
Too Little Water. Water is usually required for seed germination to take place. Seeds also often require water for the coating of each seed to break down, so that the seedling can emerge. If you have poor germination rates, this may be because you have not provided enough water for these processes to take place.
Can zinnia seeds be started indoors?
Zinnias don’t transplant well, but can be started indoors, if necessary, in peat or coir pots, 6-8 weeks before planting out. Maintain a soil temperature of 21-26°C (70-80°F). Seeds should germinate in 5-24 days.
Do zinnias grow through mulch?
While zinnias can grow well in average soils, Mbofung-Curtis says they’ll perform better with the help of compost, fertilizer, or mulch. Zinnia seeds can also be sowed directly into one to two inches of organic mulch that will provide nutrients throughout the season as the mulch breaks down to form compost.”Oct 8, 2020.
Do zinnia seeds need cold stratification?
The ancestors of our hybrid garden zinnias (Zinnia spp.) are plants native to Mexico, Central America and South America. They grow in hot climates without cold winters, so seeds don’t need cold treatment to germinate. Rather, they need warm temperatures, plenty of moisture and sunshine to germinate and grow well.
Can zinnias grow in pots?
Zinnias in pots can look just as lovely, if not more so, than those planted in beds. Zinnias are colorful additions to any flower garden – they’re great for cutting, they are easy to grow and start from seed – so they make a great choice for container gardening.
