Time to Plant Ranunculus by Yvonne Schneider (2024)

Posted on October 26, 2020 by sheryl.williams

Time to Plant Ranunculus by Yvonne Schneider (1)

‘Elegance Salmon’ Ranunculus

Fall is the Time to Plant Ranunculus

Plant ranunculus tuberous roots now and you won’t have to wait to find plants in late spring. The other advantage of buying tuberous roots from a nursery or online seller is that you can locate the color you want. Even better, ranunculus roots are about 1/5 the price of a full plant. The bloom options are wide and varied, so the biggest problem you’ll have is deciding on just a few! I saw a pink/salmon variety called ‘Elegance Salmon’ which touts disease resistance, longer stems, and bigger blooms. This one had me at the picture. I ordered a package of 5 bulbs which cost around $10 with the early order discount.

Where to Plant Ranunculus

If I don’t write down where I’m going to plant things at the time I order them, I forget where I planned to place them. When these beauties arrived, it took longer to select the right spot than to plant them! I was lucky to have received six bulbs in the package instead of the five I ordered. That allowed me to put five in a prepared bed around my patio that receives 6+ hours of sun, and one in a container so I could locate wherever I needed color in the spring.

To plant these, you’ll need your gloves, a hand trowel and a watering can to get these planted.

Time to Plant Ranunculus by Yvonne Schneider (2)

Ranunculus have tuberous roots

Locate a spot with at least 4 hours of sun and well-draining soil. Planting ranunculus is easy because you only need a planting depth of two inches. Lay out the bulbs keeping them 4-6 inches apart and then place the bulb in the hole with the spiky roots downward. Cover with soil and water in well.

Care and Maintenance

After planting, be sure to mulch around the area to keep the bulbs moist and protect from the winter chill. Once you’ve watered the bulbs in, leave them alone as the roots don’t like being disturbed. There is no need to water again until you see the foliage begin to sprout in the spring, and then keep the plants evenly moist. In most cases, our spring showers are sufficient to ensure blooms, but you may have to augment if our spring is particularly dry.

Ranunculus Make Great Cut Flowers

Ranunculus appear in April-May and are such pretty flowers you may want some to remain in the garden, while also enjoying a few in the house. The good news is the more you cut the blooms, the more blooms the plant will produce – so cut away! In fact, this is a plant you want to deadhead, or cut off spent blooms to encourage new blooms.

Ranunculus stems will last up to 10 days in a vase. The trick is to cut the flower stem when you see the bud just begin to open or show color. Remove any leaves that would be below the water line to avoid bacterial growth that can shorten the lifespan of a stem. Once in the house, trim the stem again and put immediately into the vase. Ranunculus stems can reach one to two feet tall, so you have plenty of length to work with. It’s best to change the water in the vase every two to three days to keep the water fresh.

Naturalizing Ranunculus

Time to Plant Ranunculus by Yvonne Schneider (3)

So many varieties, so little planting space.

Best suited for zones 8-10, Austin is a great location to naturalize Ranunculus bulbs. As with all bulbs, allow the foliage to yellow and die back before cutting, as this allows the foliage to feed the bulb for next year’s blooms. Since the foliage goes fully dormant during the summer, no additional watering is necessary and if located in an area with excessive water, the bulb can rot. If in a container, refrain from watering after the bulb has gone dormant and put it away until next spring. Whether you decide to keep your Ranunculus in a container or in the ground, I suspect you will become hooked and want to try more varieties and colors year after year.

Additional Resources

Bulbs for Central Texas

October Gardening Checklist

Time to Plant Ranunculus by Yvonne Schneider (4)

Yvonne was a 35+year veteran in the computer and information technology industry when she retired and moved from Houston to the Austin area. In 2018, Yvonne certified as a Travis County Texas Master Gardener to follow her passion for gardening and volunteering within the community. She has spent 20+ years enjoying gardening and working with bulbs and perennials. She now tackles the challenges presented by the Austin area wildlife, drought, and limestone soil.

Time to Plant Ranunculus by Yvonne Schneider (2024)

FAQs

Time to Plant Ranunculus by Yvonne Schneider? ›

Fall is the Time to Plant Ranunculus

What month is best to plant ranunculus? ›

— Plant them directly into a sunny, sheltered border or patio container between April-June. If planting earlier, start them off in pots or cell trays in an unheated greenhouse to transplant out later in spring. — Plant the 'claws' facing downwards, approximately 3-5cm deep, and water-in.

How late can ranunculus be planted? ›

Fall is the ideal planting time in such areas. We recommend that gardeners in zones 8 through 10 plant ranunculus bulbs in autumn for blooms in late winter and early spring. Gardeners with colder winters in zones 2 through 7 should plant in late winter/early spring, once the threat of hard frost is over.

Should you soak ranunculus bulbs before planting? ›

Don't worry—these strange little critters will produce an abundance of striking blooms come spring. Before planting, soak corms for 3 to 4 hours in room-temperature water. It's important that you don't oversoak them—they will rot.

When to plant ranunculus zone 9 in California? ›

Here in mild zone 9, you'll have the best luck if you plant ranunculus corms in the late fall. I've planted as early as October 15th, and as late as December 1st. Fall planting will ensure that the plants have a long, cool season to establish before they start blooming in early spring.

Can you plant ranunculus in summer? ›

Some growers in northern areas (the northern edge of the US and parts of Canada) find that they can start ranunculus corms in June, plant them out in July, and have gorgeous blooms in September, for a second crop. As a flower farmer it's worth a try!

Can you leave ranunculus in the ground over winter? ›

Ranunculus are perennials and the bulbs can be left in the ground for reblooms the following year. If you are growing them as annuals then you may want to pull the plants out once they stop blooming.

Do ranunculus like sun or shade? ›

Sun and Shade: Ranunculus are cool weather plants that need lots of bright light each day. In most climates, they should be grown in full sun. In hot climates they may need some sun protection during the hottest part of the day.

How many times a year do ranunculus bloom? ›

Ranunculus want cool, spring-like conditions so they'll usually bloom from late March through early May. Since we had a heated environment for some of our plants this year, we had our first ones in January! They'll bloom in profusion over a 4-6 week span and produce 5-10 blooms each.

Do ranunculus bulbs multiply? ›

In time, each ranunculus corm will multiply to several corms. In late fall, lift a mature plant and its corms from the soil and gently pull apart the corms. Replant them separately in a prepared garden bed or container in Zones 8-11 or store the corms for the following season in Zones 7 and colder.

Can ranunculus grow in pots? ›

Ranunculus are considered tender perennials in USDA Zones 8-10, where they can survive winter outdoors with minimal protection. In these zones, they can be left in the ground or in pots outdoors, where they will go dormant over the summer and regrow the following spring.

What is the best fertilizer for ranunculus? ›

Fertilization: Plant-tone organic fertilizer or fish emulsion several times throughout growing season, approx once per month. Insect Control: Typically only bothered by aphids or thrips.

Does cutting ranunculus encourage more blooms? ›

Ranunculus are incredibly generous cut flowers, but it's important to harvest them at the right time for a couple reasons. First, cutting the ranunculus stems will encourage more stems and buds to pop up throughout the season. Remember, they will continue to bloom as long as the weather cooperates.

What is too hot for ranunculus? ›

Ranunculus are cool climate plants and they do not like the heat. Once temperatures rise above 70°F, the plants stop producing new buds and begin to go dormant. Don't worry, this is normal. Gardeners in very warm zones may find it beneficial to use shade cloth to help shield the plants from too much sun and heat.

Can I plant peonies and ranunculus together? ›

If you chose to plant then next to the peony make sure to leave plenty of room around the peony for good air circulation as mentioned above. If you decide to plant the ranunculus in a container plant the bulbs 2” deep and 4”-6” apart.

Where is the best place to plant ranunculus bulbs? ›

Sun and Shade: Ranunculus are cool weather plants that need lots of bright light each day. In most climates, they should be grown in full sun. In hot climates they may need some sun protection during the hottest part of the day.

What temperature do you plant ranunculus? ›

After soaking, plant the corms (with the legs facing down) at least 1 -2 inches (2.5-5 cm) deep and 10 inches (25 cm) apart. If your using a 6 inch pot, only plant 1 corm. For a continuous bloom, Ranunculus does best in temperatures between 1.5-10C (35-50F) at night and 15-24C (60-75F) in the day.

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