July
In the Flower Garden This July
Here are your top tips for the flower garden in July, when the garden is full of colour but still needs attention to keep it looking great through summer and into autumn:
🌸 Deadheading and Maintenance
- Deadhead regularly: Remove spent blooms from roses, dahlias, cosmos, marigolds, and geraniums to prolong flowering.
- Cut back early-flowering perennials (like hardy geraniums and delphiniums) to encourage fresh growth and possibly a second flush.
- Stake tall plants: Support delphiniums, lilies, and hollyhocks to prevent wind damage.
💦 Watering and Feeding
- Water deeply and consistently: Especially containers, hanging baskets, and anything newly planted. Early morning or late evening is best.
- Feed flowering plants weekly: Use a high-potash liquid feed (like tomato feed) for dahlias, petunias, and containers.
- Mulch borders if not already done: Retains moisture and suppresses weeds.
🌿 Sowing and Planting
- Sow biennials for next year: Foxgloves, wallflowers, honesty, and sweet Williams should be sown now.
- Plant autumn-flowering bulbs: Like colchicums and autumn crocus.
- Fill gaps in borders with quick-growing annuals.
🐛 Pest and Disease Watch
- Watch for blackspot and mildew on roses—remove infected leaves and treat organically if needed.
- Check for aphids, caterpillars, and lily beetles—remove by hand or spray with an eco-friendly solution.
- Keep slugs away from hostas and young plants with barriers or traps.
🧤 Other Useful Jobs
- Take softwood or semi-ripe cuttings of shrubs like lavender, pelargoniums, and salvias.
- Keep weeding: Regular hoeing is easier in dry weather.
- Deadhead bedding plants in containers to keep them looking neat and productive.
This Month's Key Tips
- Water palnts if dry daily, but be water-wise.
- Deadhead bedding plants and flowering perennials.
- Clear algae, blanket weed and debris from ponds.
- Give the lawn a quick-acting summer feed.
- Plant second cropping potatoes now to give you new potatoes for Christmas

New
