
Royal Candles Speedwell (Veronica spicata 'Royal Candles') is a bushy, upright, clump-forming perennial plant with deep blue-purple flowers. It is a low-maintenance plant that attracts butterflies and is ideal for the front of borders, edging, or containers. To maintain Royal Candles Speedwell, it is recommended to provide full sun and well-drained soil with a slightly alkaline to neutral pH. Before planting, enrich the soil with organic matter, and space the plants 12-18 inches apart for optimal air circulation. Regular pruning and deadheading are also beneficial to encourage reblooming. Additionally, watch out for pests such as tiny webbing insects, aphids, and mealybugs, which can be treated with insecticidal soap or neem oil. With these care practices, your Royal Candles Speedwell will thrive and enhance your garden with its vibrant blooms.
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What You'll Learn
- Royal Candles Speedwell requires full sun, ideally 6-8 hours of sunlight daily
- Well-drained soil with a slightly alkaline to neutral pH is necessary
- Pests like tiny insects, aphids, and mealybugs can be an issue
- Pruning spent flowers encourages reblooming and promotes new growth
- Container growing is easy but requires regular watering and monthly feeding

Royal Candles Speedwell requires full sun, ideally 6-8 hours of sunlight daily
Royal Candles Speedwell, scientifically known as Veronica spicata, is a low-maintenance, bushy, upright, clump-forming perennial plant. It produces dense, slender spikes of star-shaped, deep blue-purple flowers from early to late summer. It is an excellent choice for gardeners due to its ability to attract butterflies and resist deer browsing.
To ensure the optimal growth of Royal Candles Speedwell, providing the right environment is crucial. One of the most important factors is sunlight. This plant thrives in full sun and ideally requires 6 to 8 hours of sunlight daily. If you are unable to provide a full day's sun exposure, partial shade can also be accommodated, but ensure it receives ample sunlight throughout the day.
The amount of sunlight directly impacts the growth and blooming of Royal Candles Speedwell. With sufficient sunlight, the plant will grow upright with dense foliage and abundant flowers. The flowers open from the base upward, creating a stunning display above the bushy foliage mound of lance-shaped, deep green leaves.
In addition to sunlight, other cultural practices are essential for maintaining Royal Candles Speedwell. These include proper spacing, soil preparation, drainage, watering, fertilizing, and pest control. Spacing your plants 12-18 inches apart allows for optimal air circulation and healthy growth. Well-drained soil with a slightly alkaline to neutral pH (6.0-7.5) is ideal, and enriching the soil with organic matter before planting promotes nutrient availability and drainage, preventing root rot.
Once established, Royal Candles Speedwell becomes drought-tolerant, requiring less frequent watering only during prolonged dry spells. However, if you are growing the plant in containers, regular watering and monthly feeding with diluted liquid feed are necessary. Fertilizing in early spring and mid-summer will also enhance the plant's growth and blooming.
By following these guidelines, you can create the ideal environment for your Royal Candles Speedwell, promoting vibrant and healthy growth while enjoying its beauty throughout the summer.
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Well-drained soil with a slightly alkaline to neutral pH is necessary
When planting Royal Candles Speedwell, it is important to space the plants adequately to allow for optimal air circulation. A spacing of 12 to 18 inches between each plant is generally recommended. Additionally, it is advised to plant them at the same depth as they were in their nursery pots to promote healthy growth.
The Royal Candles Speedwell plant prefers full sun exposure and requires 6 to 8 hours of sunlight daily. While it can tolerate partial shade, it thrives in sunny conditions. Regarding water requirements, it is important to keep the soil consistently moist until the plants are established. Once they have settled in, they become drought-tolerant and will only need additional watering during prolonged dry spells.
To further enhance the growth and appearance of Royal Candles Speedwell, regular pruning and deadheading are recommended. Promptly pruning back spent flowers encourages reblooming and promotes new growth. Deadheading, or removing faded blooms, can keep the plant blooming continuously throughout the summer. Applying mulch is also beneficial, as it helps retain moisture, suppresses weeds, and simplifies maintenance.
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Pests like tiny insects, aphids, and mealybugs can be an issue
Although the Royal Candles Speedwell plant is generally pest-resistant, it can still be affected by pests like tiny insects, aphids, and mealybugs. These pests can cause significant damage, so it is important to be vigilant and address any infestations promptly.
To protect your Royal Candles Speedwell plant from tiny insects, regularly inspect the plant for fine webbing and stippled leaves, which are indicators of an infestation. If you notice any of these signs, treat the plant with insecticidal soap to eliminate the pests. This soap will help to get rid of the tiny insects and prevent further damage to your plant.
Aphids are another common issue for Royal Candles Speedwell plants. These pests leave behind a sticky residue and can cause the plant's leaves to curl. To control and eliminate aphids, use neem oil, which is a safe and effective treatment. Neem oil will help to remove the aphids and prevent further damage to your plant.
Mealybugs are also a potential problem for Royal Candles Speedwell. These pests appear as white, cottony masses on the stems of the plant. Mealybugs can be removed manually or treated with insecticidal soap. Removing them by hand is a simple and effective way to get rid of mealybugs, but if the infestation is more widespread, insecticidal soap will help to eliminate them and prevent further damage to your plant.
By staying vigilant and promptly addressing any pest issues, you can ensure that your Royal Candles Speedwell plant remains healthy and thrives in your garden. Regular inspections for signs of pests and proactive treatment will help to maintain the beauty and vitality of your plant.
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Pruning spent flowers encourages reblooming and promotes new growth
The Royal Candles Speedwell is a dense herbaceous perennial with an upright spreading habit of growth. It is regarded as the best upright form of Speedwell and is a bushy, upright, clump-forming perennial. The plant is very low maintenance and does not require much facer foliage in front. It is pest-resistant, but it can still be affected by pests like aphids and mealybugs.
To maintain the health of your Royal Candles Speedwell, it is important to provide full sun exposure and well-drained soil with a slightly alkaline to neutral pH. Before planting, enrich the soil with organic matter to boost nutrients and ensure good drainage, which is crucial to prevent root rot. Space your plants 12-18 inches apart to allow for optimal air circulation and plant them at the same depth as they were in their nursery pot.
When dividing, carefully separate clumps into sections, ensuring each piece has roots attached. This helps expand your garden and rejuvenate the parent plant. With these propagation methods, you can easily multiply your Royal Candles Speedwell and enjoy its beauty in various spots.
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Container growing is easy but requires regular watering and monthly feeding
Container growing Royal Candles Speedwell is easy, but regular watering and monthly feeding are required. This low-maintenance plant is an excellent choice for gardeners of all skill levels.
To begin, select a container with a diameter of at least 16 inches to allow for the plant's growth. Ensure your container has drainage holes to prevent waterlogging, which can lead to root rot. Use a quality potting mix to provide the proper nutrients and encourage healthy root development.
Regular watering is essential for container-grown Royal Candles Speedwell. Check the soil moisture frequently, especially during warm and dry periods. Water when the top inch of soil feels dry to the touch. Water thoroughly until water drains out of the holes, ensuring the entire root zone is moistened. Allow the soil to dry out slightly between waterings to avoid overwatering, which can cause root rot and other issues.
In addition to regular watering, monthly feeding is recommended. Dilute a balanced liquid fertiliser and apply it to the soil according to the package instructions. Fertilising provides essential nutrients that may be lacking in the potting mix, promoting vigorous growth and abundant blooms. Aim to fertilise in early spring and again in mid-summer for the best results.
By following these simple steps, you can successfully grow and maintain Royal Candles Speedwell in containers. Enjoy the beauty of its upright "candles" of deep blue-purple flowers and healthy foliage throughout the summer. Remember to provide full sun and well-drained soil, and your Royal Candles Speedwell will thrive with minimal upkeep.
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