Plant Care Doubtful Knight's-Spur

Doubtful Knight's-Spur

Also known as

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

Taxonomy

Delphinium ajacis
Delphinium
Ranunculaceae
Ranunculales

How to care for Doubtful Knight's-Spur

💦 Water

How often to water your Doubtful Knight's-Spur

Water needs for Doubtful Knight's-Spur
0.5 cups
every 9

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.

Calculate water needs of Doubtful Knight's-Spur

Water 0.5 cups every
9

Does your plant get direct sunlight?

Select the pot size

5"
☀️ Light

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

Light needs and placement for plant Doubtful Knight's-Spur: 1ft from a window
1ft or less from
a window

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!

How to Grow Doubtful Knight's-Spur →

Benefits of Growing Doubtful Knight's-Spur →

Common Doubtful Knight's-Spur Problems →

Outdoor Care Guide for Doubtful Knight's-Spur →


💦 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.

Doubtful Knight's-Spur Water Frequency →

Doubtful Knight's-Spur Root Rot →


☀️ 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 🏡.

Doubtful Knight's-Spur Light Requirements →

Doubtful Knight's-Spur Direct Sunlight Needs & Tolerance →


🐶 🐈 👶 Toxicity

Doubtful Knight's-Spur is extremely dangerous if consumed. If you, a family member, or a pet has ingested any amount of plant material contact Poison Control, US (800) 222-1222, or your veterinarian immediately. Doubtful Knight's-Spur is not recommended for homes with children, cats, or dogs.

Is Doubtful Knight's-Spur Edible? →

Doubtful Knight's-Spur Toxicity to Cats →

Doubtful Knight's-Spur Toxicity to Dogs →

Doubtful Knight's-Spur Toxicity to Humans →


🪴 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!

Best Soil Mix for Doubtful Knight's-Spur →

Best Pots for Doubtful Knight's-Spur →

When and How to Successfully Repot Doubtful Knight's-Spur →

What Are Healthy Doubtful Knight's-Spur Roots →


💩 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!

How Much and When to Fertilize Doubtful Knight's-Spur →


🌦️ Growing Outdoors
🍂 Yellow Leaves

Yellow leaves aren’t always a reason to panic, and can be a normal part of a plant’s life cycle. Unless brand new leaves are turning yellow or all the leaves change color at once, it’s likely just your plant shedding old leaves.

Overwatering and root rot are the most likely cause of problems in Doubtful Knight's-Spur, since they are sensitive to wet soil. The leaves may also appear to be curling or drooping. Less often, yellow leaves are caused by underwatering, nutrient deficiencies, or pests.

Replace soggy soil with fresh, dry soil and download Greg to make sure your plant never gets overwatered again!


🧐 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.


Care Summary for Doubtful Knight's-Spur

Doubtful Knight's-Spur

Doubtful Knight's-Spur


Greg recommends:

Water

0.5 cups every 9 days

Placement

< 1ft from a window

Nutrients

Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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