How to Grow Diascia: A Guide for Planting Twinspur in Your Garden


If you are looking for a delicate, frosty flower to add to your garden, look no further than the Diascia plant.

This beautiful flower can be found under the name of Twinspur. While some kinds of Diascia grow more straight, others spill over containers.

This flower is a relative of the snapdragon and has a natural range of about 70 species in South Africa.

The diascia cultivars now being sold in gardening supply stores were created relatively recently.

Each year, they produce flowers in different hues and of superior quality.

Botanical Name Diascia
Common Name Twinspur
Plant Type Annual flower
Mature Size 6 to 12 inches tall and 18 inches wide
Sun Exposure Full sun to partial sun
Soil Type Fertile, well-drained
Soil pH 6.0 to 6.5
Bloom Time Spring and fall
Flower Color Pink, white, coral, orange, red, plum
Hardiness Zones 9 to 11
Native Area South Africa

Tips for Keeping Your Plants Healthy

  • To keep your diascia plants healthy, water them regularly and fertilize them every two weeks.
  • Pinch off the dead flowers to encourage new growth, and make sure to provide adequate drainage in your pots or planters.
  • If you live in an area with a lot of wind, you may need to stake your plants to prevent them from toppling over.
  • With proper care, your diascia plants will bloom abundantly throughout the spring and fall. Enjoy their delicate beauty in your garden for many seasons to come!

Now that you know how to grow diascia, it’s time to get started on planting twinspur in your own garden!

Lighting and Temperature

Diascia prefers full sun to part sun, although it will tolerate some shade. It is a heat-tolerant plant, but it will not do well in temperatures below 50 degrees Fahrenheit.

If you live in an area with hot summers, provide afternoon shade to prevent the leaves from scorching.


Diascia does best in fertile, well-drained soil. The ideal pH range is between six and seven. To improve drainage, mix in some sand or perlite before planting.


Fertilize your diascia plants every two weeks with a balanced fertilizer. You can also use compost or manure to provide nutrients.


To encourage new growth, pinch off the dead flowers as they appear. You can also cut back the plants by a few inches in early spring.


Water your diascia plants regularly, especially during hot weather. Allow the soil to dry out between watering to prevent root rot.

If you live in an area with high humidity, make sure to provide good air circulation around the plants to prevent fungal diseases.


Diascia plants can range in size from six to 12 inches, and they can spread up to 18 inches wide.

Spacing When planting diascia, space the plants about eight to 12 inches apart. If you are growing them in containers, make sure to use a pot that is at least 12 inches wide.


Diascia flowers appear in the spring and fall. The flowers are usually pink, white, coral, orange-red, or plum.

Common Pests

Diascias are a type of plant that is often found in damp habitats. Snails and slugs are attracted to these types of environments, and they typically like to hang out with other animals under the leaves.

If you have diascias in your garden, you may find that these pests are attracted to the area. The simplest way to solve this problem is to raise your plants off the ground.

This will prevent the snails and slugs from getting to the leaves. If you cannot raise your plants, you can try using a number of different strategies to keep the pests away.

Many gardeners use copper tape or fencing to create a barrier around their plants. Others use products that contain chemicals that deter snails and slugs.

Whatever approach you take, it is important to be persistent in order to keep these pests under control.

Varieties of Diascia Plant

The tall, delicate pink diascia known as “Pink Adobe,” hardy to zone 5, is a plant with a track record of success. The “Dew Drops” hybrid from Diascia White has a yellow center and the “Flirtation” hybrid sports delicate orange blossoms.

These plants are all members of the genus Diascia and they are native to Africa. All three of these plants have won the Royal Horticultural Society Award of Garden Merit (AGM).

The Blackthorn apricot, Diascia barberae, is another plant that has won this prestigious award. This plant has soft pink blossoms and it is hardy to zone 6. All of these plants are great choices for gardeners looking for something different.

Thanks to their easy care requirements and stunning blooms, these plants are sure to add interest and beauty to any garden.

How do you propagate Twinspur?

Propagating Twinspur is relatively easy and can be done from seed. The seeds should be pressed into the soil but left exposed to sunlight as the process of germination requires exposure to sunlight.

Keep the soil well-watered until the seeds start sprouting, which typically happens within two or three weeks.

Once the seedlings have established themselves, you can begin to slowly reduce the amount of water you give them.

Twinspur is a hardy plant and can tolerate a wide range of growing conditions, so don’t be afraid to experiment with different amounts of sun and water to find what works best in your climate.

With a little care and attention, you can soon have a beautiful display of Twinspur in your garden.

Is Diascia Hardy in UK?

Diascia is a genus of approximately 60 species in the family Scrophulariaceae. The native range extends from South Africa through Lesotho, Zimbabwe, Mozambique, and Swaziland to southern Angola.

The type species for the genus is Diascia integerrima. The genus name Diascia derives its name from the Greek words ‘dias’, meaning “cross”, and ‘kosmos’, meaning “ornament”.

The flowers of most species have two pink or white petals with a distinctive cross-shaped structure at their base. Many species also have brightly-colored leaves, making them popular additions to gardens.

In colder regions of the UK, Diascia may be grown as annuals or half-hardy perennials, depending on the particular species.

Some protection may be necessary during winter, but overall they are relatively easy to care for and make excellent border plants.

Are Twinspur perennials?

While many plants only bloom for a brief period each year, Twinspur is a perennial that produces flowers all summer long.

The delicate pink-salmon blossoms are borne on slender stems, and they add a touch of color to any garden.

Twinspur is also a very hardy plant, able to withstand cold temperatures and strong winds. As a result, it is an excellent choice for gardeners who live in cooler climates.

Whether you are looking for a plant that will bloom throughout the summer or one that is tolerant of colder weather, Twinspur is an ideal choice.

How do you overwinter a plant?

As any gardener knows, soil is essential for growing healthy plants. Not only does it provide nutrients and support for roots, but it also helps to regulate moisture levels and prevent weed growth.

However, soil can also be quickly eroded by wind and water, damaging plant life and making it difficult for new seedlings to take root. One way to help prevent soil erosion is to maintain a healthy lawn.

Grassroots help to hold the soil in place, and the dense network of blades helps to deflect wind and water.

In addition, lawns help to slow down the flow of rainwater, giving the ground a chance to absorb the water before it runs off.

As a result, a well-tended lawn can play an essential role in preventing soil erosion.

Do perennials need to be covered for a freeze?

Perennial flowers are a wonderful addition to any garden, but many people are unsure of how to care for them during the winter months.

Do they need to be covered for a freeze? The answer is that it depends on the type of plant.

Most perennials are actually quite hardy and don’t require any special treatment during the winter.

However, there are a few varieties that are sensitive to frost and may need to be protected. Hostas and bleeding hearts are two examples of frost-sensitive plants.

If you live in an area that experiences freezing temperatures, it’s important to cover these plants with a layer of mulch or burlap before the first frost hits.

Doing so will help to ensure that they come back healthy and blooming next spring.

Do I need to cover my perennials if it freezes?

The majority of perennial plants are not afflicted with damage from frost and, as a result, do not require covering.

Perennials that are frost-sensitive, however, such as Hostas and Bleeding Hearts, must have their flowers and foliage protected.

To do this, Gardeners can use fabric covers or mulch. Frost-sensitive perennials should be covered when the temperature is forecast to drop below freezing.

This will help to ensure that the plants are not damaged by the cold weather. In addition, it is important to check on the covered plants regularly, as the fabric can trap heat and cause the plants to overheat.

By taking these simple precautions, gardeners can keep their frost-sensitive perennials healthy and vibrant all season long.

How do you protect perennials from hard freeze?

A hard freeze is defined as temperatures below 28 degrees Fahrenheit for five minutes or more. This kind of extreme cold can damage or kill many types of plants, including perennials.

To protect perennials from a hard freeze, gardeners can take several steps. First, they can cover the plants with towels, sheets, blankets, or tarps. It is important to cover the plants before darkness falls, as this will help to trap warm air around the plants.

In addition, gardeners can inverted baskets or coolers over their plants. These measures can help to prevent damage from a hard freeze and allow perennials to survive the winter months.

Does Diascia bloom all summer?

Diascia is a beautiful flowering plant that is perfect for adding a splash of color to your garden. One of the best things about diascia is that it will bloom repeatedly throughout the summer months.

However, diascia thrives during the cooler weather of the fall and spring. If your plants begin looking sagging or tired cut them back half and they’ll begin to bloom again.

Diascias of various varieties range between 6 and 12 inches tall and up to 18 inches wide.

So, whether you’re looking for a plant to add some color to your garden during the summer months or you’re looking for a plant that will thrive in cooler weather, diascia is a great choice.

Can I overwinter Diascia?

Diascia is a stunning flower that adds a splash of color to any garden. The plant is native to South Africa and prefers cooler temperatures. For this reason, Diascia is most beautiful in the spring and autumn.

However, if your plants begin to lose color in the summer heat, don’t despair. Trimming them by a couple of inches and keeping them hydrated will help them to bounce back once the weather cools off.

And, since Diascia can tolerate frost, there’s no need to worry about your plants dying off in the fall. With a little care, you can enjoy these lovely flowers all year round.

What perennials stay in bloom all summer?

As the weather warms up, many gardeners begin to think about which flowers they want to add to their yards.

While annuals can provide a burst of color, perennials are a wise choice for those who want their gardens to bloom all summer long. Here are eight perennials that will stay in bloom from June to September.

Garden phlox is a fragrant flower that comes in pink, purple, and white. Hardy hibiscus loves the sun and attracts both butterflies and hummingbirds.

Shasta daisies are easy to grow and make excellent cut flowers. Coneflowers are drought-tolerant and come in a variety of colors, including purple, pink, and yellow.

Black-eyed Susans are cheerful flowers that bloom from mid-summer to fall. Perennial geraniums are low-maintenance flowers that come in many different colors. Lavender is a popular herb that also happens to be an attractive flowering plant.

Coreopsis is a long-blooming flower that is available in many different varieties.

With so many choices, it can be hard to decide which perennials to add to your garden. However, all of the plants on this list are easy to care for and will provide your yard with color all summer long.

Jessica Miles

Jessica Miles is a writer for Botanique Boutique, a plant and gardening blog. She has always loved plants, flowers, and anything green. When she was younger, she used to watch her grandfather garden and would be in awe of the beautiful flowers he would grow. Now Jessica writes about all things related to plants and gardening - from beginner tips on how to start growing your own plants, to in-depth guides on caring for a specific type of flower or plant. She loves helping others learn about this fascinating hobby, and hopes that her writing will inspire people to get outside and enjoy nature!

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