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Multi-Coloured Roses
Soil Pests and Diseases Nutrients

Posted By: Plant Magic

How to Grow…Roses?

Perfect to plant throughout the entire year, growing roses in the garden creates a colourful and delightful atmosphere. Selecting the ideal roses to plant depends on what environment can be provided. Some roses can grow as tall as 30 feet (such as climbers) and some as short as 36 inches (such as miniature roses).

There are also rose pests to consider alongside blooming times. Some roses only bloom once a year, and the weather conditions can affect the quality of the flowers. A bloom booster will help all roses to have beautiful and healthy flowers, combined with a minimum of six hours of sunlight.    

 

The Basics of Growing Roses

Tip: When planting bare root roses,the roots need to be soaked in water for approximately half an hour so they are properly hydrated before being planted.

 

Location

When planting roses, competing plants can’t be nearby, as roses will compete for both sunlight and moisture. Approximately three feet between roses and other plants should be left, and approximately two feet between other rose plants.

Roses shouldn’t be planted in windy areas, as it can cause the base of the plants to lift from the soil. Should this occur, the plant can grow at an angle and potentially die in extreme cases. Vertical support for growth should be added if needed to ensure the plants stay in place.

 

Orange Roses

Soil

Well-drained soil rich in nutrients is perfect for roses. The soil should be prepared first by digging it thoroughly so that there are no weeds or stones so that roses’ roots can spread out freely. A hole of approximately a foot and a half by two feet should be dug.

Breaking up the soil at the bottom of the hole helps the roots dig deeper, and the roses should be positioned with their stems towards the wall and with the roots facing away from the wall. Lastly, the space around the roots should be filled in, making sure they’re covered properly, firming the soil on the surface so the roses are secure.

 

Water

One of the most important steps in growing roses is to ensure that they have the right amount of water so they have happy and healthy lives. Water should frequently be applied directly to the soil to keep a balanced level of moisture. Watering over leaves and flowers causes the moisture to encourage diseases to develop.

The different varieties of roses require different quantities of water:

  • Potted roses: Five litres of water
  • Shrub roses: Five litres of water
  • Standard roses: 10 litres of water
  • Climbing roses: 10 litres of water
  • Rambling roses: 10 litres of water

When planting and growing roses in the UK, there is no need to water them during the months of October to February. The rainfall levels are enough to provide roses with the amount of moisture they need.

From March to May, already established roses should be watered once a week and newly-planted roses every two to three days. Between June and September, newly-planted roses should be watered every other day and already established roses around once a week.

Garden Hose

Feeding

To have beautiful and healthy roses, they will need plant feed to provide all the nutrients they need. The less stressed a rose plant is, the less chance it will succumb to diseases. Repeat-flowering roses, in particular, appreciate being fed. For better results, roses can be fed twice a year:

  • At the beginning of their growing season, from late-March to April.
  • Once the bloom cycle has finished, around late-July, rose feed will promote stronger repeat flowering.

 

Pruning

Roses need to be pruned regularly to remove dead leaves and encourage healthy growth. Leaving any dead or weak stems can promote diseases, so by pruning them air circulation is increased and the risk of a fungus issue decreased. New growth is stimulated and new blooming encouraged, easily done with a specialised pair of scissors for clean cuts.

 

Rose Pests and Diseases To Watch Out For

Within a wide variety of rose pests and diseases, there are a few more common and more serious to watch out for before it’s too late:

Pink Roses

Powdery Mildew

Also known as Podosphaera pannosa, powdery mildew is a fungus that causes white growth on roses. It affects all the aerial parts, spreading through microscopic spores. Moisture and poor air movement are conducive of this disease, which is why it’s important to not wet the leaves and the flowers of roses.

Some symptoms of this disease are:

  • The typical white growth caused by the fungus
  • Flower buds not opening appropriately
  • Distorted and discoloured leaves
  • Stems and flower stalks become thicker than healthy ones

 

Black Spot

This fungus, Diplocarpon rosae, is the worst disease that can affect roses. The leaves are seriously infected from spring and onwards and will remain so until the leaves are removed. The plant’s vigour suffers, and the overall health of the roses deteriorates.

Some symptoms of this disease are:

  • Black and scabby lesions and patches on the upper leaves’ surfaces, with the possibility of the fungus strands being visible.
  • Yellowing of the leaves’ tissues around the black spots, causing the leaves to fall.
  • Severe infections can make roses lose all of their leaves.

Red Roses in a Bush

Rose Dieback

This disease can affect plants at any time of the month. A light infection by either a fungus, weather conditions, or poor soil conditions can often occur. A severe condition, however, can both be very destructive and spread to other plants.

Additionally, roses affected by dieback can also be affected by canker. The fungus can infect the plant through damage already done and precedingly spread throughout the plant. Some symptoms of this disease are:

  • Small black spots
  • The young shoots are noticeably browning and with dieback (mainly in spring)
  • Main stems, twigs, and branches also affected but throughout the entire year
  • Risk of root decay due to dieback

 

Rose Leaf-rolling Sawfly

Alongside aphids, which are a common pest to affect roses, the rose leaf-rolling sawfly is an insect that is mostly active from late April until July. The female insects insert their eggs into the rose leaflets and secrete chemicals that proceed to induce the leaf to start rolling.

From the eggs emerge larvae similar to caterpillars who feed inside the rolled leaflets. Some symptoms of this pest are:

  • Rolled leaves with pale green larvae.
  • The affected leaves eventually roll up into tubes, occurring within 24 hours of the egg being laid.


Contact us to know more about the nutrients and flower bloom boost products that are perfect for your roses.

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Whether you are an expert who already has a thriving crop of healthy plants, or you are trying to grow your very first hydroponic yield, we can help you to grow the strong and healthy crops you have always wanted.

Here at Plant Magic Plus, our team of gardening experts work very hard behind the scenes to provide you with the high quality nutrients, additives and growing media that will help you to get the most out of your growing plants.

But we understand that successful horticulture is about more than just having good quality chemicals, nutrients or fetilisers, that's why we have written this blog to provide you with the insights, tips and techniques you will need to give your garden that extra magic touch.

From helpful advice about watering your plants in soil and a guide to magnesium nutrients, to top tips about growing hydroponic vegetables and a comprehensive overview of microbes, we’ve got everything covered.

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