Plant Care Blackjack Oak

Blackjack Oak

About Blackjack Oak

Blackjack Oak is a super rare houseplant 🌿 that is easy to grow and needs regular watering to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Blackjack Oak likes soil that is well draining. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.

Blackjack Oak belongs to the Quercus genus, and is native to the Central and Eastern United States.

⚠️ Blackjack Oak is not safe to consume. 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. If you have children, cats, or dogs in the home, we suggest keeping this plant out of reach.

Taxonomy

Quercus marilandica
Quercus
Fagaceae
Fagales

How to care for Blackjack Oak

💦 Water

How often to water your Blackjack Oak

Water needs for Blackjack Oak
0.5 cups
every 9

Blackjack Oak 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?

Select the pot size

5"
☀️ Light

Finding light for Blackjack Oak in your home

Light needs and placement for plant Blackjack Oak: 1ft from a window
1ft or less from
a window

Blackjack Oak love being close to bright, sunny windows 😎.

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

Blackjack Oak does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Blackjack Oak in your home 🏡.

🪴 Nutrients

How to fertilize Blackjack Oak

Nutrient, fertilizer, and repotting needs for Blackjack Oak: 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 Blackjack Oak after it doubles in size or once a year—whichever comes first.

💡 FAQs
⭐ Difficulty Level

Blackjack Oak is generally considered an easy-to-care-for plant and makes a great choice for beginners!


💦 Water Needs

Blackjack Oak 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

Blackjack Oak 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

Blackjack Oak is not safe to consume. 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. If you have children, cats, or dogs in the home, we suggest keeping this plant out of reach.


🪴 Soil

Blackjack Oak 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

Blackjack Oak grows very slowly and doesn’t require added fertilizer. Replacing your plant’s potting soil once a year should provide them with more than enough nutrition. Remember, plants get their energy from sunlight, not fertilizer!


⬆️ ⬇️ Growth Pattern

Blackjack Oak will branch off as it grows. To encourage branching, pinch off the newest growth at the tip and the stem will branch off into two.


🌦️ Growing Outdoors

USDA Hardiness Zone
Blackjack Oak can be grown outdoors in USDA Hardiness Zones 6a-9b. Find your local hardiness zone here.


🌱 Propagation

The seeds of Blackjack Oak can be used to grow new plants! After your plant flowers, any seeds that formed can be collected and germinated in potting soil.


🧐 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 Blackjack Oak

Blackjack Oak

Blackjack Oak


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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