Black Magic Petunia Info and Care

Are you planning to plant a black magic petunia in your garden? Are you unsure whether it will be the right plant for you? If so, don’t worry. We’re here to tell you everything you should know about black magic petunias to help you make an informed decision!

The black magic petunia is a hybrid variety of flowers that has one of the most true-black colored flowers. The leaves have a sharp green color, which makes the black flower pop out even more. You can plant it in your garden, or even indoors, in a pot.

If you’re intrigued and want to find out more, keep on reading!

Black Magic Petunia Info and Care

Black Magic Petunia Care

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What is Black Magic Petunia?

These plants with gorgeous black flowers are a hybrid variety that was developed in 2013. They come in pure black, but some varieties have yellow stripings as well.

But it doesn’t come without a price. If you want the perfect, mysterious, witchy, black flowers, you’re going to have to provide the plant with affection and care. 

How to Care?

Although black magic petunias look like fancy plants, they’re very easy to care for. They’re considered to be the perfect plant for average gardeners. All you have to do is follow some simple steps and you’ll get the most gorgeous, dramatic blooms.

Care of petunias starts when you’re putting the seed in, so be vigilant from day one. Even though you can get black magic petunias from any nursery near you, we’ll recommend you start them from seeds.

Starting the Seed

Petunia seeds are extremely small, so starting them in the soil won’t be a good idea. It is recommended to start them in a seed starter tray. Sprinkle the seeds on the surface of the soil and then cover the seeds with more soil. Gently mist the soil with water until the soil is damp, and cover the tray with plastic wrap.

Put the tray in a warm condition with plenty of sun exposure. Avoid spots with direct sunlight. And as soon as the seeds start to sprout, remove the plastic and start misting them regularly. After a while, the seedling will gain a height up to a few inches.

Bonviee 10 Packs Seed Starter Tray with Elevated Lid, 120 Cells Thicken Seed Starting Trays Kit with Adjustable Humidity Vent, Clear Cell Tray and Heightened Lids for Greenhouse & Gardens, Green
  • 🌱【Elevated for Enhanced Growth】Bonviee upgraded seedling trays feature taller lids, offering your young plants ample room to thrive. This extra height benefits not only seed germination but also the early stages of plant cutting development, allowing tender plants to flourish for longer periods within the seed starter trays.
  • 🌱【See-Through Design】Crafted with transparent materials, both the upper lid and the seedling tray are clear, enabling you to directly observe the growth of your plant roots without disrupting their natural progress.
  • 🌱【Eco-Friendly and Easy to Clean】Made with eco-conscious users in mind, these cups are not only reusable but also washable, ensuring a long-lasting and eco-friendly solution for your gardening needs.
  • 🌱【Optimal Drainage and Adjustable Ventilation】The presence of drainage holes at the base ensures root health is maintained by preventing waterlogging and root rot. Additionally, the adjustable ventilation cover on the lid allows you to control the humidity and airflow, catering to the specific needs of your plants.
  • 🌱【Compatible with Heat Mats & Plant Lights】These trays can be used in a temperature range below 48°C. They serve as a fantastic method to cultivate a vibrant and thriving garden. The Bonviee seedling trays come with 10 packs seed starter kits, making them your ideal companions for planting and breeding seedlings.

Where to Plant?

These petunias can be grown outdoors, in a pot, or in any other container. The plant grows up to one foot. Due to its small stature, it makes the perfect plant for hanging baskets and patios.

Black magic petunias prefer bright light. Always remember to plant them in a spot that gets around 6 hours of direct sun every day, and 4 hours of indirect sunlight. Even though they can tolerate shade, black magic petunias will produce much fewer flowers in shade.

Type of Soil

Black magic petunias thrive when there is good-quality, organic material in your soil. They prefer soil that is slightly acidic, well-drained, and loose.

Water Needs

Black magic petunia, just like many other petunia varieties, is drought resistant and heat tolerant. This makes the plant ideal for warm and dry areas.

Water them in a way that the water slowly drains through the roots. Avoid shallow watering. If your black magic petunias are growing in a pot, water them more frequently. Remember, black magic petunias need to be dry in between watering.

Overwatering can cause root rot, as extremely moist soil can attract pathogens such as fungi. So make sure your pots have drainage holes.

Fertilizer Needs

Regular fertilizers are a must for black magic petunias. The fertilizer that’ll be perfect for this plant should have balanced macronutrients, should be slow-release, and be organic. You can use fertilizers in the spring, and again in July. Use liquid fertilizer to feed your plant every week throughout the summer and spring.

J R Peters Inc 52624 Jacks Classic No.1.5 20-6-22 Petunia Feed
  • Designed for plants that do not take up iron efficiently in the root zone like petunia, calibrachoa, bacopa, diascia, nemesia, scaveola, verbena, pansy, vinca, etc.
  • Contains an enhanced micronutrient package that will produce lush green plants in any growing condition
  • Especially effective in hanging baskets and containers that are watered often
  • Great for hard water areas


Now that you know all this, you’re perfectly capable to make an informed decision on whether or not you want black magic petunias. They’re an easy plant to care for. You can plant them in a hanging basket, a container, or even outdoors. All they need is plenty, but indirect sunlight, a good fertilizing routine, enough water, and well-drained and organic soil.

Hopefully, this helped you!

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