Plant Care Black Spruce

Black Spruce

About Black Spruce

Black Spruce is a relatively 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.

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

Taxonomy

Picea mariana
Picea
Pinaceae
Pinales

Also known as

pices mariana

How to care for Black Spruce

💦 Water

How often to water your Black Spruce

Water needs for Black Spruce
0.5 cups
every 9

Black Spruce 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 Black Spruce

Water 0.5 cups every
9

Does your plant get direct sunlight?

Select the pot size

5"
☀️ Light

Finding light for Black Spruce in your home

Light needs and placement for plant Black Spruce: 1ft from a window
1ft or less from
a window

Black Spruce love being close to bright, sunny windows 😎.

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

Black Spruce does not tolerate low-light 🚫.

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

🪴 Nutrients

How to fertilize Black Spruce

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

💡 FAQs
⭐ Difficulty Level

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


💦 Water Needs

Black Spruce 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

Black Spruce 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.


💨 Humidity

Black Spruce enjoys lots of humidity. Provide humidity for your plant by watering regularly and thoroughly, since plants absorb most water through their root system rather than their leaves. They may also benefit from being placed next to a humidifier.


🪴 Soil

Black Spruce is very sensitive to wet soil, so choose a potting soil that drains very well and doesn’t retain too much moisture. A good soil will have lots of perlite or vermiculite for drainage and some organic matter for nutrition. A few handfuls of perlite added to regular store-bought cactus soil will do the trick!


💩 Fertilizer

Black Spruce 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

Black Spruce grows vertically and new growth will emerge from the top of the plant.


🌦️ Growing Outdoors

USDA Hardiness Zone
Black Spruce can be grown outdoors in USDA Hardiness Zones 2a-5b. Find your local hardiness zone here.


🌱 Propagation

Black Spruce can be propagated by the leaf method. To propagate:

  • Remove a leaf by gently twisting until it pops off.
  • To get the leaf to root, you can either:
    • Place the leaf in water until roots emerge and are ~2” long and then transplant into well-draining soil, or
    • Place the leaf directly into well-draining 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 Black Spruce

Black Spruce

Black Spruce


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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