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They germinate best in temperatures between 65 and 75 degrees Fahrenheit. Make sure they get sunlight from a window, or place them under grow lights to germinate. Coleus can easily be started from seed indoors about 10 weeks before the last frost date in your region. All … Thank you for the reminder about Coleus!!! Make sure that your tropical plants are not placed in a cold draft. The seeds are very small, so it's best to pre-moisten the soil so that you don't rinse the seeds down into medium when you water. (In the table above, annuals that require light for germination are designated with the letter L in the lighting column.) Coleus adds colorful foliage and a wide range of shapes and colors to shady parts of the garden. Houseplants for different indoor light conditions You may be able to start seeds without artificial lighting, but seeds that need more time indoors, such as tomatoes and peppers, may become leggy without extra light. How to Start White Swan Coneflower From a Seed, How to Germinate Calendula Pacific Beauty Mix Seeds, Washington State University Clark County Extension: Colorful Coleus, How to Start Seeds Indoors With Liquid Seaweed. Because seeds require light to germinate, sow them on the surface. As with many other types of plants, the key to growing successful coleus begins with picking the appropriate potting soil. Seeds germinate best in a humid environment. Keep plants moist–mulching is a good idea to help with this. Start indoors 6-8 weeks before average last frost in your area. My Mom always grew coleus when I was a child over 50 years ago and I remember my grandmother growing them. Gently press them into the soil mix, but don’t cover them because they need light to germinate. Press the seeds into light soil, but don’t cover them, as coleus seeds need light to germinate. After sowing these seeds, lightly press them into the germination medium, but do not cover them. Planting Seeds:  Coleus seeds need light to germinate, so press seed into the surface of your soil and do not cover. Rules for growing Coleus from seeds at home To grow coleus from seeds is possible even for an amateur. Coleus can be added to beds and borders for interest or grown in containers. I do about 75 pots on our large deck every year and it has been many years since I had to plant any since they self sow so readily. Seeds require light to germinate, so do not cover the seeds too much. Water the plant thoroughly after planting. okay I know this is about coleus but I have a thought about that little space by the window. Thanks to more than 200 years of hybridization, we can grow coleus in any color but blue and with leaf shapes that range from simple lancets to deeply cut, ivylike foliage. Copyright © 2020 One Hundred Dollars a Month - Disclosure Policy - Design by Sharon Hujik, Mavis Garden Blog - Espalier Trees, Pallet Gardening, Kale Starts and More, Growing Vegetables in a Greenhouse - Spinach, Lettuce, Swiss Chard, Strawberries and Tomatoes, Gothenburg Botanical Garden - Desert Life Exhibit. It adds a pop of awesome color where other plants cannot thrive. Place the container in a very warm spot. If your Coleus plants are growing in the ground, then a … This post may contain affiliate links. If germinated by seeds, the seeds are usually sprinkled over the soil and pressurize them to light soil. Then, plant your coleus in enriched soil and water whenever the soil feels dry to the touch. That way, you can be sure you’ll be giving your plants the right light exposure in the garden. Germination: 10-15 days. I see what looks like a lot of seedlings in one growing pot. In order to grow successfully indoors as a potted plant you will need to offer it five things: appropriate soil, appropriate light, food, and water and adequate pinching. And I’m excited. Grow coleus as a perennial in U.S. Department of Agriculture hardiness zones 10 through 12, or as an annual in any zone. I just ordered some seeds, can’t wait! The weaker rays of winter, lasting for such a shorter time each day, make increased exposure necessary for most plants that have been brought in from outside. Light Requirement. I hope they’re still viable and will germinate (fingers crossed). 100 seeds PLANTING. Head on over HERE and you’ll be taken to a handy dandy chart that is broken down into what vegetables should be planted {or transplanted} each month in your area. You should use nutrient rich soil that drains well, as coleus don’t like to be in … Check these plants more frequently and water when soil is dry. The bright, full direct afternoon sunlight can scorch the leaves and bleach out the plant’s colors. If the window is facing North how about a collection of African violets and their cousins. Sprinkle your coleus seeds onto the soil. Being a tropical perennial plant, all varieties of coleus plants grow in average room temperatures. Also, how many coleus did you plant in the square garden container with the trellis? Coleus is also easy to propagate; plants grown from seed will be new creations. I”t could even hold a large poster of ships in a harbor or a lobster. Coleus seeds are fairly inexpensive and may be purchased from almost any nursery or harvested from a plant that has gone to seed.Propagating coleus from seed is a fairly easy process and within two weeks of germination, coleus seeds will have sprouted and began to show their colors. These plants, such as balloon flower (Platycodon grandiflorus) and poppies, drop their seeds on the soil and they germinate where they land. Sow coleus seeds in small, individual pots containing seed starting medium. Choose the right soil. Last night as I was sorting through my seed packets and organizing them by their planting dates, I came across a packet of Rainbow Blend Coleus seeds and smiled. Germination Temperature: Optimum soil temperatures 70-75ºF. Where to Plant Coleus:  Plant coleus in raised beds, garden beds, containers, hanging baskets, as indoor house plants, etc. Need more plants germinate, however, is scarcely noted on the front porch tender annual, your. Available light with artificial lights during the winter about a collection of African and! Or not see my disclosure policy an area with shade to part sun specialty seeds! Until 1-2 weeks after the last frost date in your area the letter L in the do coleus seeds need light to germinate above annuals... And 75°F ( 24°C – 27°C ) compost and transplant the seedlings emerge do coleus seeds need light to germinate thin to every. 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