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Doubtful Knight's-Spur

Also known as

Consolida ajacis, delphinium, larkspur, doubtful knight's spur, rocket larkspur and Consolida ajacis

Taxonomy

Scientific name

Delphinium ajacis

Genus

Delphinium

Family

Ranunculaceae

Order

Ranunculales

How to care for Doubtful Knight's-Spur

💦 Water

How often to water your Doubtful Knight's-Spur

Doubtful Knight's-Spur needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Water 0.5 cups every
9

Does your plant get direct sunlight?

No Yes

Select the pot size

☀️ Light

Finding light for Doubtful Knight's-Spur in your home

Doubtful Knight's-Spur love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Doubtful Knight's-Spur does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Doubtful Knight's-Spur in your home 🏡.

🪴 Nutrients

How to fertilize Doubtful Knight's-Spur

Nutrient, fertilizer, and repotting needs for Doubtful Knight's-Spur: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Doubtful Knight's-Spur after it doubles in size or once a year—whichever comes first.

💡 FAQs

⭐ Difficulty Level

Doubtful Knight's-Spur is generally considered an easy-to-care-for plant and makes a great choice for beginners!

💦 Water Needs

Doubtful Knight's-Spur prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

☀️ Sunlight Needs

Doubtful Knight's-Spur requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

🐶 🐈 👶 Toxicity

Greg does not have confirmed data on this plant’s toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, it’s always best to consult a medical professional.

If you or someone else ingested this plant, call Poison Control at US (800) 222-1222. If a pet consumed this plant, contact your veterinarian or the ASPCA at US (888) 426-4435.

🪴 Soil

Doubtful Knight's-Spur does best in well-draining soil. A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!

💩 Fertilizer

Doubtful Knight's-Spur should be repotted after it doubles in size or once a year, whichever comes first. Fresh potting soil has all the nutrients your plant needs, so as long as it’s refreshed yearly, you shouldn’t need to use fertilizer. Remember, plants get their energy from sunlight, not fertilizer!

🌦️ Growing Outdoors

USDA Hardiness Zone
Doubtful Knight's-Spur can be grown outdoors in USDA Hardiness Zones 2a-11b. Find your local hardiness zone here.

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.