Growing Calendulas in your flower garden is easy. They are a very prolific, easy-to-grow annual flower. Also known as “Pot Marigolds”, Calendula flowers grow atop long stems. They make great indoor arrangements, but need to be checked for aphids before bringing them in. They would be more popular, but they give off an unpleasant odor that is sometimes too strong indoors. This guide on “How to Grow Calendula Flowers” will show you just how easy they are to grow. Then, acquire dome calendula seeds and gett growing a beautiful crop of Clanedulas.
Did you know? Calendula petals are used in soups, stews, and salads. Calendula leaves can also be used for decorating cakes.
Flower Colors: Calendulas produce orange, yellow, and lemon-colored blooms.
Flowers Bloom: Flowers will bloom from mid-summer until frost.
Plant Height: 12″ – 24″
Annual, Calendula Officinalis
Calendula are grown from seeds. Sow Calendula seeds early in the season, and cover lightly with 1/4″ of garden soil. They germinate easily and will grow quickly, producing their first of a continual display of blooms by mid-summer.
Select a location in your garden where they can grow undisturbed for years and years, as these flowers will drop their seeds and reseed your flowerbed year after year.
Space plants 15″ apart.
Days to Germination: 10 – 14 days.
Low maintenance Calendula plants like rich, well-drained soil, but are very tolerant of average to slightly poor soils. Improving your soil quality will produce much healthier plants and flowers, so add plenty of compost. Add a general-purpose fertilizer once a month.
Once your Calendula plants are established, they should grow well, even if left unattended. Water them during dry periods, once or twice per week.
Add mulch around the plants for appearance and to keep weeds down.
Early in the summer, your plants will begin to produce large flowers on long stems. They will continually produce flowers even after the first light frost. As you pick the flowers for indoor arrangements, look carefully at the stem and the undersides of the leaves for aphids.
Pick dead blooms to keep the plants neat looking and to encourage new blooms. See: deadheading blooms
Calendula is a somewhat hardy annual. It will not be harmed by a light frost either in the spring or fall. However, the plants will succumb to heavy frosts or freezes.
Plant Problems – causes and cures
The biggest drawback to Calendulas is that insects like them and they are subject to plant disease. Aphids are the most common insect problem. They are readily treated with insecticidal soap or repellent. Sevin should also work well. Inspect flowers closely before bringing them indoors.
The most common disease are mildews, which occur in hot, humid weather or rainy weather. Use fungicides if mildew problems arise.