Wait for the seed pods to dry. 8. You can plant them in seedling trays, or directly into the garden. Are you familliar with the wintersowing method? They are a great seed company to order from - both in germination and service. Hollyhocks will be ready for planting out in the garden by June, but won't flower well until the following year. Some gardeners plant seeds or plants two years in a row to have flowers every season. I find the plants make this happen on their own. The seeds are fairly large, plant them about 3cm apart in pots. TIP: If you get some self-seeders, transplant them to pots, grow them to about 8-inches tall, and then transplant them back to the garden or a large container. If not, look into it. Providing tall spikes of large summer blooms, hollyhocks (Alcea rosea) grow best from seed sown outdoors in their final growing sites. deep. You can collect hollyhock seeds and do some planting of your own. You can also plant bare root hollyhocks. The ideal spot for growing on has maximum all-round light – ideally, plants should have warm roots but cool tops. 1. You might get the odd plant … Hollyhock plants grow up to 6 feet in height. Hollyhock flowers are easy to grow for beginner gardeners! Hardy in U.S. Department of Agriculture plant hardiness zones 2 through 10, hollyhocks are short-lived perennial plants that are often grown as biennials, growing one year and flowering the next. Break apart the pods, separate the seeds and plant in a well prepared garden area. A pollinator host plant and beautiful flower that adds height and beauty to any garden. How to grow hollyhocks in your garden. SOIL: Hollyhock will do well in almost any soil but prefers a well-drained soil with pH 6.0 - 8.0, from slightly acid to alkaline. Their tall spires look good grown against walls and fences and are stalwarts of cottage gardens. 9. Seeds can be sown directly outdoors about a week before last frost. How to grow hollyhocks. Hollyhocks are easy to grow and their blooms come in a wide range of jewel colours, flowering from early summer to autumn. Hollyhocks (Alcea rosea) are flowering plants that mock the growth of a perennial plant because they are known for their ability to self seed. Sow at just ¼ inch deep and about 2 feet apart. Prepare some humus rich well dug growing medium for trays. Hollyhock seeds only need to be planted right below the soil, no more than 1/4-inch (.6 cm.) Select a planting site with full sun exposure. They have a wide variety of various hollyhock seeds including more than one dwarf kinds. 20 cm apart in the garden; The seeds need warmth and moisture to germinate. They are tall growing plants, usually reaching between 5 and 6 feet high. It’s tradition to let hollyhocks self-seed and grow in clusters but spacing the plants a few feet apart can also greatly reduce the spread of rust. How to Grow Hollyhocks. Similar conditions in the ground. Hollyhocks have long taproots, so if seeds are started indoors, use tall, individual pots and transplant early to avoid damage. Plant "Majorette" hollyhock in well-drained soil in the spring. 10. How and when to plant hollyhock seeds: Hollyhocks are easily started from seed indoors or out. You can grow Hollyhocks (some spell it Holly hocks) in your Cottage Garden one easy step at a time. Hollyhock seeds need moisture to grow. I wintersowed my first hollyhocks last winter and have had blooms for the past 3-4 weeks. HOLLYHOCK FOLIAGE: Hairy leaves, 6-8" across, borne in low clumps. Hollyhock plants should be about 2 feet (.6 m.) apart to grow well. Past 3-4 weeks and moisture to germinate, borne in low clumps transplant early to avoid.... Blooms for the past 3-4 weeks borne in low clumps, flowering from early summer to autumn need warmth moisture. Cottage garden one easy step at a time, borne in low.! 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