To begin your cosmos flower seed collection you first need to choose which blooms you want to grow next year. Move them into 5-inch pots as soon as theyre 3 or 4 inches tall.
The two most common cosmos are tall cosmos and sulphur cosmos.
When to plant cosmos seeds. Fill a seed tray or small pots with sieve good-quality seed or multi-purpose compost. Sow seed in early spring directly into the soil where you want your cosmos to grow or into small pots or modules filled with free-draining seed compost. You know Cosmos your grandmothers favor.
Plan to stake your Cosmos if plants get too tall and gangly. Youre probably most familiar with tall cosmos. Cosmos is best grown from seed and can be sowed any time throughout spring.
Alternatively sow seeds indoors 4 to 6 weeks before your last spring frost date in trays or pots with a good seed-starting mixture. Welcome to Explore The World In this video you can find out some information about cosmos plant from seedcosmos plant growingcosmos Flowercosmos Plant–Ok. Keep reading to learn more about container grown cosmos.
Prepare an area that is rock free and has good loose soil. Because sprouts will develop quickly be sure to scatter seeds after all danger of frost has passed in the spring. The 2- to 4-inch blooms come in shades of pink red white or violet and bicolors.
How to Plant Cosmos From Seeds. Growing cosmos in pots is easy and youll be rewarded with plenty of flowers for cut or dried arrangements or you can simply enjoy them in their pot. Alternately if you have a very short growing season you may sow seeds indoors 4-5 weeks before.
The easiest cheapest and perhaps most satisfying solution is to plant a seed and watch it grow. When to Plant Cosmos. Find some particularly attractive samples and tie a short piece of yarn around the stems to mark them for later.
If growing in pots pot on when the seedlings are large enough to handle. Cosmos prefer an area with a lot of sun. Sow them in modules in March and April with nice fresh compost.
A prolific bloomer cosmos transplants can grow much too large in tiny nursery pots and become root-bound. Yes it is easy to grow cosmos flowers from seeds. Direct-sow seeds outdoors once the danger of frost has passed.
If youre looking for container plants loaded with pretty blossoms throughout summer and well into fall cosmos is a great choice. Once the flowers begin to die back the cosmos seed harvest can begin. This makes it a really easy and affordable way to fill your borders with a stunning floral display come summer.
Plants grow 1 to 4 feet tall and have slender ferny leaves. Lightly firm down the compost with the back of your. Cosmos typically germinate in 7 to 21 days at 75 degrees Fahrenheit followed by flowering in about 50 to 60 days.
Avoid using fertilizers that contain high amounts of nitrogen this can cause foliage to develop faster than flower blooms. Cosmos is one of the easiest flowers to grow from seed that is directly sown in the garden bed. Cosmos Seeds on Sale.
They must be sown indoors at this time of year so they are protected from cold and wet weather. Plant out in late AprilMay after the danger of frost has passed. Transplants can be set outdoors as soon as the danger of frost.
Depending on the area you live in if you live in a cold climate you will have to start seeds indoors first and then place them outdoors. Cosmos are typically sown outdoors where they are to grow but you can get the plants off to an early start by planting seeds indoors. You can start seeds indoors four to six weeks before the last frost but cosmos sown outdoors directly in the garden will quickly catch up.
Before planting read the seed packet directions carefully. How to sow cosmos seeds. If you live in a warm area you can directly start your seeds outdoors.
The beauty of growing cosmos from seed is that you can get so many says Monty Don in a recent Gardeners World video. Sow seeds directly in the ground once all danger of frost has passed. Sowing Cosmos Seeds Indoors Cosmos seeds are large easy to handle and quick to germinate.
This is the one you see in the grocery store seed rack every year.