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September Gardening Tips

Ahh, September. The time where everyone gets excited to swap bikinis for woolly jumpers, and frappes for pumpkin spice lattes. We’re dusting off our thick fluffy blankets and looking forward to spending our days indoors. But what about the garden? As a landscaper, you will be aware that there is always something to do in the garden. Here, we have our September gardening tips.

September Gardening Tips: Flowers

Keep feeding and dead-heading all hanging baskets and container plants. They will often keep going until it begins to frost. Remember to divide herbaceous perennials as the weather cools and keep them watered. What’s more, if you see any gaps in borders, fill them with autumn flowering plants! Sedum and Chrysanthemum will extend the colour to the end of the season.

Now is the time to plant spring flowering bulbs such as daffodils, crocus and hyacinth. At the same time, you can plant out biennial plants that were sown earlier in the year. If you didn’t have time to sow them, you can always buy some from Ladybrook Nursery!

As we’re in a very rainy country, especially at this time of year, it’s a good time to order trees and shrubs. They will grow tremendously next spring if planted at this time of year. Also, remember to keep deadheading annuals and perennials to extend their performance. Dead-dead penstemons, dahlias and roses to prolong flowering. Finally, remember to prune any late-summer flowering shrubs and climbing or rambling roses once they have finished flowering.

Potatoes

3 weeks before lifting your maincrop potatoes, you can also pull or cut off the foliage at ground level. This will prevent blight spores from infecting the tubers as you lift them and will help to firm the skins of the potatoes. Newly dug potatoes can be spread out to dry for a few hours before being stored in a cool dark place. Store them in paper or hessian sacks as doing so will allow them to breathe when stored. Only store undamaged, disease-free tubers. One rotten potato can ruin your whole crop.

Pumpkins, Squash and legumes

You can help your pumpkins to ripen in time for Halloween by removing any leaves shadowing the fruits. Place pumpkins and squashes on a piece of slate or wood to raise them off the wet soil and prevent rotting.

Make sure you keep feeding and watering your French beans and runner beans to make the most of them. Continue to harvest little and often. This will prevent them from setting seed. When beans and peas have finished cropping, cut the plant away at ground level and leave the roots in the soil. These crops fix nitrogen which is slowly released into the soil as the roots break down.

Fruits

Order your strawberries, raspberries, blackberries or current bushes for cropping next year. These plants should ideally be planted during their dormant season. Any strawberry runners should be potted up for extra plants next year. Strawberry plants should be tidied, with any used straw cleared away. Doing so will harbour pests and diseases over winter.

Keep an eye out for any fruit that is rotting on your pear, apple and plum trees. These must be picked off straight away. Speaking of apples, test their ripeness by gently lifting them in the palm of your hand, or by giving them a gentle pull. They should come away easily. Plums should also be picked. If you have too many, give them a wash, halve, stone and freeze them laid out on a tray. Once frozen, pack them into freezer bags.

Greenhouse

Empty pots as old compost and decaying plant material can keep unwanted pests in your greenhouse. As a result, they will provide a shelter for them over winter. Clean out your greenhouse if you want to reduce this risk next year. Don’t forget to remove any shading too, as the greenhouse will need as much light as possible throughout the winter.

Other Jobs

  • Clay soil must now be improved before it becomes too wet or frozen. Incorporate organic matter and/or horticultural grit.
  • Sow green manures like mustard and clover on uncultivated areas to improve soil and keep weeds to a minimum in winter.
  • Create compost bins in preparations for fallen leaves and dead plant material that will build over autumn.
  • Dispose of diseased plant material by burning it or placing it in your household waste. DO NOT compost it as the spores may still infect your plants.

Talk to Ladybrook Nursery Today

For all your September planting needs, talk to Ladybrook Nursery. Our 13 acres of wonderful plants to choose from can give your landscaping projects everything they need. Get in touch for more information.

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