Hot weather and drought-like conditions don’t mean a beautiful yard and garden is out of reach. Learning everything you can about them helps ensure they will grow big and beautifully for your enjoyment. Tip 4. Wait for the Marigolds to Dry Before Harvesting . These are: Some people also refer to Calendulas as Pot Marigolds, but they are not related to the flowers most people know as marigolds. Marigolds can be grown as houseplants, although they do have a bit of an odour that some people don’t appreciate.If you bring them in, the room should be cool, with temperatures between 50-60 degrees F (10-15 degrees C) Give the plants as much sun as possible, as they need lots of light to survive. Marigolds are suitable for borders near sidewalks and driveways due to their high heat tolerance, although be sure to water them regularly. Using your thumb and forefinger, simply pinch the dead bloom where it meets the stem. To thin, carefully remove a seedling and, holding it by its leaves to prevent the stem from being crushed, lightly set the roots into a hole. A properly prepared garden has plenty of mulch to ensure the marigolds retain their moisture throughout the winter, which leads to flowering during the summer. Marigolds do not bloom year-round, but with proper care, some varieties can bloom for several months. Be sure to use a large enough container because marigolds tend to grow quickly, and crowding can be an issue. This will help to prevent damping off. In this case, once the seeds germinate, transplant them outdoors after the last frost. Pinch back. You can put them outside once all danger of frost has passed. Use a soil-based potting mix and either add in a granular, slow-acting fertilizer at the time of planting, or periodically water with a diluted liquid fertilizer. Keep the Betterdays coming with gardening tips and exclusive offers. They will put on the best show all summer and into fall. You can greatly increase the number of blooms and the blooming time length by deadheading spent blossoms. Learn everything you need to know about drought tolerant landscaping, including the best type of plants. Add mulch. Cover the seeds with a thin layer of vermiculite. Removing them by hand is simple, fast and can alleviate the problem. Simply cover the seeds with soil and keep them moist and warm. The swivel allows the nozzles to pivot without, Winter Gardening Tips to Tackle in the Off Season, As winter marches on, avid gardeners become more and more eager to get growing. After seeds have germinated, moisten soil and then plant seedlings about 1 inch apart from one another. Sign up to get all the latest gardening tips! Marigolds tend to bloom only when their stems approach their mature heights. Even now, you can be growing marigold flowers in your own garden. Marigolds will grow as long as there is no danger of frost, which is almost always the case in Arizona. Cover the pot or tray with plastic wrap and place the tray in a warm spot. As an annual, do they just die, and need to be replaced with new seeds? The upright, taller marigolds are African or American marigolds (Tagetes erecta), growing 24 to 48 inches tall. Mulch will prevent weeds from growing and keep soil nice and moist. I was given marigolds at a mother’s day event this year, and they have bloomed in outdoor soil. This hardiness is one of the reasons that they are often used as bedding plants and container plants. Their cheery blooms thrive in the sun, making these summer-through-fall-time beauties a popular choice. Could I bring them inside for the winter? Most marigolds are annuals, but a few are perennials. Marigolds are most commonly thought to be the little orange and yellow flowers everybody grows because everybody can grow them. If transplanting, be sure to water well after doing so. If your marigolds are not doing well, it may be due to slugs or caterpillars. Too much water on marigold leaves can result in a powdery mildew building up on the pretty dark green foliage. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. Plan to harvest the seeds when the petals are dry and the base of each bloom (the seed pod) is turning brown.