For a long lasting display of summer flowers, Petunias (Petunia spp.) can’t be beaten. They are available in a wide range of colours and varieties, from large flowers to smaller trailing varieties, and are excellent for borders, mass beddings, potted gardens and even hanging baskets.

How to grow petunias in a garden

  1. Sow seeds into trays of Yates Black Magic Seed Raising Mix. Gently press down and lightly water with a fine mist spray.
  2. Keep trays in a warm place and retain moisture by covering with glass or plastic cling wrap.
  3. While the seedlings are growing, choose a sunny spot in the garden and prepare the planting area well by digging in Yates Thrive Natural Blood & Bone with Seaweed.
  4. Once seedlings have emerged, feed weekly with Yates Thrive Natural Fish & Seaweed+ Plant Food Concentrate. Allow seedlings to grow to about 5 cm before transplanting.
  5. When transplanting them into your prepared garden bed, ensure seedlings are well spaced – at least 30 to 40 cm apart. Mulch with organic mulch, such as bark chips, woodchip or pea straw and water in well.
  6. Feed during the growing and flowering season with Yates Thrive Rose & Flower Granular Plant Food. TIP: For an added boost apply Yates Thrive Natural Fish & Seaweed+ Plant Food Concentrate.

How to grow petunias in a pot

  1. Choose a pot at least 200 mm wide and deep. Position in full sun.
  2. Fill the chosen pots with quality potting mix, such as Yates Black Magic Seed Raising Mix.
  3. Sow the seeds directly into the pot by pressing them lightly into the mix and water well.
  4. Water gently and keep moist through germination period.
  5. Feed every 1 to 2 weeks during the growing season with Yates Thrive Roses and Flowers Liquid Plant Food. TIP: For an added boost, apply Yates Thrive Natural Fish & Seaweed+ Plant Food Concentrate.

Yates varieties

Petunia 'Neptune Shades'

Neptune Shades provides a lush, deep carpet of colour all season, with profuse blooms in an oceanic mix of blues, lilac, coral pink and white.

Growing tips

  • After initial flowering, pinch back to encourage compact growth and more flowering.

More Plants


Hellebores are the moody, gothic jewels of the winter garden. Learn how you can grow them in garden or in pots.


Gardenias have soft scented blooms in white or yellow. Depending on the variety, can be grown as a shrub, standard, hedge or ground cover.


Freesias are a spring flowering bulb that produce scented blooms in a range of vibrant colours including pinks, white, yellow, mauve and red.


Flax (Phormium spp.) are highly versatile plants which can grow well in swampy or dry conditions. Great for large pots or en-masse in garden beds.

Recommended products

Yates Black Magic Seed Raising Mix

Specially formulated for trouble-free seed raising in trays (or outdoor seed sowing direclty into the ground) and propagation of cuttings.