Product description
Petunia Amethyst is a striking Garden Petunia variety known for its vivid purple blooms, soft ruffled petals, and naturally branching habit. These compact plants create a full, elegant display that suits borders, containers, and any hanging basket or hanging plant pot where rich colour is needed. Their jewel toned flowers stand out beautifully in mixed arrangements, adding depth and vibrancy to summer planting schemes.
These bedding plants garden ready establish quickly in well drained soil and a sunny position. Regular watering, light feeding, and removing faded blooms will keep them flowering strongly throughout the season. With their reliable growth and long lasting colour, these garden ready Petunias make excellent plants for refreshing patios, brightening borders, and enhancing hanging baskets outdoor displays with minimal effort.
Please Note: When purchasing plants, please consider that each live item is unique and may therefore differ from the images shown, which are for illustration purposes only. Depending on season, some plants may be pruned back to encourage growth and deciduous plants may arrive without leaves.
Garden Plant Size Guide

Plants in larger pots can be multiple years older than their smaller counterparts with more mature root systems and foliage. This makes them able to thrive as a full size plant in your garden quicker than smaller alternatives.
The most common size of pot that garden plants come in are 9cm/1L/3L/5L this is in reference to the diameter at the top of the pot.
9cm potted plants still remain the most popular cost effective option though, they just may take a little patience to allow them to grow into full maturity once planted in your garden.
Plant specs, care guide & tips
Key features
Specifications
When to plant
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Planting and period of interest times are general guidelines and may vary based on your location and conditions. For best results, consult local gardening resources.
Instructions
Top Tip
Regularly deadheading spent blooms will keep the plants looking fresh and encourage them to produce new flowers right through the season. For the best results, feed Petunias little and often with a weekly liquid fertiliser, which helps maintain vibrant colour and supports a compact, tidy shape as they grow.
How to Water
Water Garden Petunias regularly to keep the compost lightly moist, allowing the top layer to dry slightly between each watering. During warm spells or when plants are in containers, check them more often, as they can dry out quickly once they’re in full summer growth.
How to Plant
Install the young plant near the rim of the container using a slightly acidic multipurpose potting compost. Angle the growing tip slightly downward to encourage the vines to immediately begin their cascade. Giving your Petunia Amethyst an edge position allows it to rapidly form a massive curtain of foliage and flowers.















