12 Delphinium Flower Varieties for Your Garden

Frequently Asked Questions:
1. Will vinegar kill all weeds?
Vinegar is effective at killing most young, tender, and shallow-rooted weeds such as chickweed or small annual weeds. The acetic acid in vinegar dries out the plant’s leaves and stems, causing them to wither. However, it’s less effective against deep-rooted or perennial weeds like dandelions, crabgrass, or thistles. These tougher weeds may require repeated applications, higher-strength vinegar, or a combination of vinegar spray with manual removal to fully eliminate them.
2. Can DIY weed killers harm grass and plants?
Yes. DIY weed killers such as vinegar, salt, and boiling water are non-selective, meaning they don’t distinguish between weeds, grass, or flowers. If they come in direct contact with your lawn, vegetable plants, or ornamental flowers, they can cause scorching, yellowing, or even death. To avoid harming desirable plants, apply these solutions carefully and directly on weeds, ideally with a spray bottle or by shielding nearby plants with cardboard or plastic during application.
3. Is homemade weed killer safe for pets?
Generally, yes—when used properly. Unlike chemical herbicides, homemade options like vinegar, salt, or boiling water don’t leave behind long-lasting toxic residues. Pets and children can safely return to treated areas once the vinegar has fully dried or the boiling water has cooled. However, concentrated vinegar (horticultural vinegar with higher acidity) can cause skin or paw irritation if touched while wet, so always let the treated area settle before allowing pets back.
4. How long does it take for natural weed killers to work?
Natural weed killers typically show visible effects within 24 hours. Weeds may start to wilt, turn brown, or dry up soon after application, especially in hot, sunny, and dry conditions, which speed up the process. For tougher weeds or cloudy weather, results may take longer, and you may need to reapply for complete control. Keep in mind that these methods work best on small or actively growing weeds, not large established ones.
5. Are these solutions permanent?
No, most DIY weed killers are not a permanent fix. While they kill the parts of the weed above the soil, many weeds—especially perennials—can regrow from seeds or deep root systems. To maintain a weed-free garden, combine these natural treatments with preventive strategies such as mulching, pulling weeds before they seed, applying corn gluten meal to block germination, or maintaining dense, healthy plant cover to crowd out weeds naturally.
Q: Can I grow a banana tree indoors?
Yes, you can grow a banana tree indoors, especially if you choose dwarf varieties such as the Dwarf Cavendish. These smaller banana plants can thrive in large pots, provided they receive plenty of sunlight—ideally near a south-facing window—or supplemental grow lights. Indoor banana plants also benefit from high humidity, so regular misting or the use of a humidifier can help them flourish. With proper care, indoor banana trees can produce lush tropical foliage and, in some cases, even fruit.
Q: Do banana plants grow from seeds?
Most edible banana varieties, such as Cavendish, are seedless and cannot be grown from seeds. Instead, they reproduce through suckers (also called pups) that grow around the base of the plant. However, wild banana species do produce large, hard seeds that can be germinated. These seed-grown bananas are not commonly cultivated for eating, as their fruit is often filled with seeds and lacks the sweetness of cultivated varieties.
Q: How long does it take for bananas to fruit?
Banana plants typically take between 9 to 15 months from planting to produce fruit, although the exact time depends on the variety, climate, and growing conditions. They grow fastest in consistently warm temperatures with high humidity and fertile soil. Once the flower stalk emerges, it usually takes another 2 to 6 months for the bananas to mature and be ready for harvest.
Q: Do banana trees die after producing fruit?
Yes, the main stem of a banana plant, often called the "mother plant," dies after it produces fruit. However, the plant doesn’t completely die out—it produces new shoots or suckers at the base. These suckers grow into new plants, continuing the cycle. Gardeners often select the healthiest suckers to grow into the next generation of fruit-bearing plants, ensuring a continuous supply of bananas.
Q: Can bananas survive winter?
Banana plants are tropical and do not tolerate frost or freezing temperatures. In regions with cold winters, they must either be grown in pots and brought indoors before the first frost or protected outdoors with heavy mulching and wrapping. Some cold-hardy ornamental varieties can withstand cooler temperatures, but fruit-bearing types generally need a warm, frost-free climate to survive and produce well.
Q: How long does it take for sunflowers to bloom?
It depends on the sunflower varieties you choose. When you’re growing sunflowers from seed, most sunflower plants take 70–100 days from the time you sow the seed until sunflower heads bloom. Smaller varieties are usually fast growing and bloom earlier, while a giant sunflower takes longer.
Q: What are the best sunflowers to grow?
There are many types of sunflowers. The traditional giant sunflower can reach 12–15 feet tall, producing large seed heads packed with edible seeds. Small sunflower varieties are ideal for pots or borders. For continuous color, try succession planting with branching varieties. When deciding on sunflowers to grow, consider if you want cut flowers, acres of sunflowers, or seeds for roasting.
Q: How do I plant sunflower seeds?
To plant sunflower seeds, choose a sunny spot or use seeds in pots. Outdoors, sow sunflower seeds 6 inches apart for smaller plants or several inches apart for giants. Indoors, you can plant seeds indoors in pots and later transplant them along a fence or in beds. The best planting time is after the frost has passed.

Looking to jazz up your garden with a splash of color and a touch of grandeur? Delphiniums might be just what you need! These perennials stand out with their tall, eye-catching spikes and an array of vibrant hues from deep blues to bright purples.
But here’s the scoop: while delphiniums might steal the show with their show-stopping looks, they come with a bit of a warning label. All parts of the plant are toxic if ingested, so they’re not the best option if you have curious kids or pets who like to nibble on greenery. You might want to think twice before planting them. Enjoy their beauty responsibly and let these impressive blooms steal the show in your garden!
12 Delphinium Flower Varieties for Your Garden
Now, let’s dive into some delphinium varieties that might just become your new favorites! Here’s a quick tour of these stunning plants to help you get familiar with what each has to offer:
1. Delphinium elatum 'Pacific Giants'

The ‘Pacific Giants’ series is a favorite among gardeners for its tall, striking spires that can reach up to six feet in height. These delphiniums boast large, vibrant blooms in shades of blue, purple, white, and pink. Their deeply lobed leaves are a lush green, providing a beautiful backdrop to the flowers. They grow best in full sun to partial shade and thrive in rich, well-drained soil. Regular watering is essential, especially during dry spells, but be careful not to let the soil become waterlogged. These beauties prefer cooler temperatures and moderate humidity, making them perfect for gardens in temperate regions. Ideal for experienced gardeners due to their height and care requirements, ‘Pacific Giants’ are perfect for adding dramatic vertical interest to your garden beds.
2. Delphinium belladonna 'Casa Blanca'

Known for its pure white blooms, ‘Casa Blanca’ is a stunning variety that stands out in any garden. These plants typically reach about three to four feet in height, making them a more manageable option for smaller spaces. The blooms are large and densely packed along the spikes, with deeply cut, dark green foliage. They grow best in full sun and require well-drained, fertile soil. Regular watering and a good layer of mulch to retain moisture are key to their success. This variety prefers cooler climates and moderate humidity, making it well-suited for temperate gardens. ‘Casa Blanca’ is an excellent choice for intermediate gardeners who want to add a touch of elegance and brightness to their garden.
3. Delphinium 'Blue Butterfly'

If you’re looking for a compact delphinium variety, ‘Blue Butterfly’ is an excellent choice. This dwarf variety only reaches about 12 to 18 inches in height, making it perfect for containers or the front of flower beds. The vibrant blue flowers are small but abundant, creating a dense, colorful display. With finely divided, fern-like leaves, this plant adds texture as well as color. ‘Blue Butterfly’ thrives in full sun and well-drained soil. It’s quite tolerant of heat compared to other delphiniums, making it a good choice for warmer regions. Regular watering is necessary, especially during hot, dry periods, and it prefers moderate humidity. This variety is great for beginners due to its compact size and relatively easy care requirements.
4. Delphinium grandiflorum 'Blue Mirror'

The ‘Blue Mirror’ variety is known for its striking azure blue flowers that seem to glow in the sunlight. This compact plant typically grows to about two feet tall, with blooms that appear in early to mid-summer. The leaves are finely cut and fern-like, adding a delicate texture to your garden. ‘Blue Mirror’ grows best in full sun and well-drained, moderately fertile soil. It requires regular watering but does not tolerate waterlogged conditions. This variety prefers cooler temperatures and moderate humidity, making it ideal for temperate climates. It’s a fantastic choice for gardeners of all experience levels, adding a pop of vivid blue to borders and mixed beds.
5. Delphinium 'Blue Bird'

From Blue Butterfly to Blue Mirror, and now Blue Bird—don’t get confused! While these varieties share the blue hue, they each bring something unique to your garden. ‘Blue Bird’ has gorgeous sky-blue blooms with a white center that really pop. These plants grow to about four to five feet tall, so they make quite an impression. The flowers are large and densely packed along the spikes, with dark green, deeply lobed foliage adding to their charm. They love full sun and rich, well-drained soil. Keep them well-watered, especially during dry spells, but avoid soggy soil. ‘Blue Bird’ thrives in cooler temperatures and moderate humidity, making it a fantastic choice for temperate climates. If you're an experienced gardener looking to add a splash of bright blue to your flower beds, ‘Blue Bird’ is perfect for you!
6. Delphinium 'Magic Fountain'

The ‘Magic Fountain’ series offers a variety of colors, including blue, purple, pink, and white. These plants are more compact, growing to about three feet in height, which makes them easier to manage in smaller gardens. The flowers are densely packed along the spikes, and the foliage is deeply lobed and dark green. ‘Magic Fountain’ delphiniums thrive in full sun to partial shade and prefer rich, well-drained soil. Regular watering is essential, but avoid letting the soil become too wet. This variety does well in cooler climates with moderate humidity. ‘Magic Fountain’ is perfect for intermediate gardeners who want to enjoy the beauty of delphiniums without the towering height.
7. Delphinium 'Summer Stars'

This one is a compact, bushy plant that reaches about two to three feet in height. It features pure white blooms that are densely packed along the spikes, creating a stunning visual effect. The leaves are deeply cut and dark green, providing a beautiful contrast to the flowers. ‘Summer Stars’ grows best in full sun and well-drained, fertile soil. Regular watering and mulching to retain moisture are important for their success. They prefer cooler temperatures and moderate humidity, making them well-suited for temperate gardens. This variety is ideal for beginner to intermediate gardeners looking to add a touch of elegance to their garden.
8. Delphinium 'Guardian Lavender'

The ‘Guardian Lavender’ variety is known for its tall spikes of soft lavender blooms. These plants can grow up to four feet tall, making them a striking addition to any garden. The flowers are large and densely packed, and the foliage is deeply lobed and green. ‘Guardian Lavender’ thrives in full sun and well-drained, fertile soil. Regular watering is essential, especially during dry spells, but be careful not to overwater. This variety prefers cooler climates and moderate humidity. It’s a great choice for experienced gardeners who want to add a pop of pastel color to their garden beds.
9. Delphinium 'Dark Blue and White Bee'

This variety is known for its striking contrast between the deep blue petals and the white centers, or ‘bees.’ These plants can grow up to six feet tall, with large, densely packed flower spikes. The leaves are deeply lobed and dark green. ‘Dark Blue and White Bee’ grows best in full sun and well-drained, fertile soil. Regular watering is necessary, especially during dry periods, but avoid waterlogged conditions. This variety prefers cooler temperatures and moderate humidity, making it well-suited for temperate gardens. It’s perfect for experienced gardeners who want to make a bold statement in their garden.
10. Delphinium 'New Millennium Stars'

The ‘New Millennium Stars’ series offers a range of colors, including blue, purple, pink, and white. These plants are known for their strong stems and large, densely packed flower spikes. They can grow up to six feet tall, with deeply lobed, dark green foliage. ‘New Millennium Stars’ thrive in full sun to partial shade and prefer rich, well-drained soil. Regular watering is essential, but be careful not to let the soil become waterlogged. This variety does well in cooler climates with moderate humidity. It’s ideal for experienced gardeners looking for a reliable and stunning addition to their garden.
11. Delphinium 'Red Caroline'

A unique variety, ‘Red Caroline’ offers a rare and striking red bloom, standing out in any garden. These plants typically reach about three to four feet in height, with large, densely packed flower spikes. The foliage is deeply lobed and dark green. ‘Red Caroline’ grows best in full sun and well-drained, fertile soil. Regular watering and a good layer of mulch to retain moisture are key to their success. This variety prefers cooler temperatures and moderate humidity, making it well-suited for temperate gardens. ‘Red Caroline’ is an excellent choice for intermediate gardeners who want to add a touch of uniqueness and vibrant color to their garden.
12. Delphinium 'Black Knight'

The ‘Black Knight’ variety is known for its deep indigo to almost black blooms, creating a dramatic and striking effect in the garden. These plants can grow up to six feet tall, with large, densely packed flower spikes. The leaves are deeply lobed and dark green. ‘Black Knight’ grows best in full sun and well-drained, fertile soil. Regular watering is necessary, especially during dry periods, but avoid waterlogged conditions. This variety prefers cooler temperatures and moderate humidity, making it well-suited for temperate gardens. It’s perfect for experienced gardeners who want to make a bold and dramatic statement in their garden.
FAQs
Q: Do delphiniums have a fragrance?
A: Most delphinium varieties are not particularly fragrant. Their appeal lies more in their vibrant colors and striking appearance rather than scent. If you're looking for fragrant flowers, you might want to pair them with other scented plants.
Q: Are there non-toxic alternatives to delphiniums that look similar?
A: If you’re looking for similar-looking, non-toxic alternatives, consider plants like snapdragons or annual salvia. These plants offer vibrant colors and tall flower spikes without the toxicity risks associated with delphiniums.
Q: Can delphinium varieties be crossbred to create new types?
A: Yes, delphiniums can be crossbred to create new varieties. Breeders often cross different species or varieties to develop plants with unique colors, growth habits, or improved traits. If you’re interested in growing hybrid varieties, check with specialized breeders or nurseries that offer these selections.