Flowering Shrubs and Trees

When would be the correct time to cut back peonies and lift and divide for replanting?

I have recently started growing a frangipani from a cutting. While it has flowered once, it seems to have come to a bit of a standstill. What should I be doing for it to flourish?

Every year my dahlias develop mildew as we come into autumn. It then spreads around the garden and limits the plants’ ability to thrive. Is there anything I can do to prevent mildew?

I have two very healthy Winchester Honeysuckle and they have been through two spring seasons without any fruit, flowers, or colour change in leaves. They are planted in partial shade with morning sun and there is also a large cherry plum tree above the area. What is causing the lack of expected seasonal changes?

Can you tell me please why my gypsophila plant was flowering really well for three years, a huge bush of flowers, then died? Branches were going yellow and I lost the plant. Also, I can grow the white ones but when I tried growing pink, they all died. Can you please help?

I’m wanting to plant tall shrubs in front of my north-facing lounge window as a welcome distraction from a view of my garage, and also along my north-facing large fence. Perhaps a climber or tall shrub/tree. What do you suggest I plant in both areas?

I like the bunched look of lavender and recently saw some pink rather than the purple ones. We are about to buy a house soon and wanted to know if they were easy to find and grow?

Our viburnum (not a snowball one), has grown very straggly and back in May, half of it was blooming, and the other half was leafless. Would it be wise to cut it back, and if so, by how much?

I have had several different coloured dwarf Alstroemeria which I have tried to grow in pots. These always seem to die right back just as they are about to flower. I have moved them into the garden this year, but unfortunately, the same thing has happened to 2 of the plants, the 3rd has produced some flowers and the 4th is still green, but none are thriving or lush with flowers. What do you recommend?

We’ve been advised that our sewer pipes will have to be dug up and replaced. Can I uproot my Escallonia Apple Blossom shrubs and place them perhaps in tubs while the repairs are carried out, then replant them?

We have three flowering cherry trees in our section. They appear to be sending out roots to other parts of the garden. How can we stop this? Will they damage to our new drive? And does cutting them back affect the trees?

What is the best way of propagating Tree Peony seeds? And how do you move one that has grown too big for its position?

We have a very big cherry blossom tree on our property and it has nearly dropped all its leaves for winter. When is it best to trim/prune it?

What is the best way to take cuttings from a begonia? Leave the cutting in water till roots appear or tap it in root hormone gel before planting?

Could I please have some advice on when to take fuschia cuttings, is April too late in the autumn?

I have quite a few lavenders, but with some the leaves have gone dead at the bottom. I prune them after flowering and they come away again but at the moment the smaller variety are looking spindly. I have different varieties. Can you help? 

We have a lilac tree and for the past fourteen years we have had plenty of green and growth, but very little in the way of flowers. Could you please give me some advice on this matter?