Spring Park Collections Spring Park Nursery


Spring Park Cultural Notes

SITUATION

All roses grow best in a sunny, well-drained position. Roses can also be grown very well when shaded for part of the day. Roses grown in a shaded area will have a restricted amount of blooms and if the plant remains shaded and wet for long periods they are more susceptible to fungal diseases. A sheltered position from strong wind is preferred. The plant should have plenty of good air movement to help prevent mildew. Roses should have at least 5 hours of sunshine a day to perform at their best.

SOIL

Roses prefer to be grown in a medium to heavy loam about 35 cm deep with a good clay Sub soil. Clay soils can be improved by adding lots of organic matter such as well rotted manure. Gypsum can also be added to break up the clay before planting. Plants will grow in any type of soil but the more sandy the soil, less water and nutrients will be retained and should be replaced regularly, organic type fertilizers work best in this sandy soil situation.

PLANTING BARE ROOTED ROSES

Dormant roses are available during June, July and August. After purchasing your roses you should aim to plant them as soon as possible. If you cannot plant them immediately take care not to let the roots dry out. This is very important as if they become dry, the plants vigor and growth may be set back or in the worst case die. Soaking in a bucket of water and a cap full of Seasol for a few hours before planting is also a good idea, this just helps the plant get the best start.
Dig a hole large enough to accommodate the roots of the plant comfortably, so the bud union (graft) is just above the ground level. Place a mound of soil in the middle of the hole and spread the roots out over the mound. Place a light coverage of soil over the roots and we recommend that for each rose one dessert spoon full of Osmocote (8 to 9 month slow release fertilizer) be added, also a good handful of Blood ‘N’ Bone can be added to the remaining soil that is to be back filled into the hole. Tread the soil reasonably firmly, leaving a basin around the rose to help retain water and water in thoroughly, if you like you can add Seasol or use the bucket of soaking water.

Standard roses are planted in the same way but with a stake placed in the centre of the hole for support. Weeping roses are grown with a pole and a rose ring for extra support.

Rock Dust is a natural fertilizer product that can be added to your soil while planting to help with soil improvement.

Planting your Bare Rooted Roses

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Step 1: Soak your rose in Seasol Step 2: Select your planting site Step 3: Dig your hole with a mound in the middle and rose graft level with soil surface
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Step 4: Apply slow release fertilizer and rockdust to surounding soil Step 5: Back fill soil Step 6: Water in well

PLANTING YOUR POTTED ROSES

Potted roses can be purchased and planted at any time throughout the year. It is important when removing the plant from the pot not to disturb the roots, as this could cause a severe setback to the plant. Dig a hole, twice the size of the pot so that the bud union is level with the ground, add some slow release fertilizer to the soil. Place the rose in the hole and fill with soil, water in well and finish of with a layer of mulch.

Planting Your Potted Roses

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Step 1: Select your site for your potted rose to be planted Step 2: Dig hole twice as large as the pot Step 3: Apply Fertilizer to soil
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Step 4: Place rose in the hole, backfill and water in well Step 5: Mulch your newly planted rose

FEEDING

Roses are veracious feeders and for the best growth it is recommended that they be feed every six weeks during the growing season. Vary the types of fertilizers at each application such as Blood and Bone, Organic Rose Foods, Liquid Flower and Fruit, or a Complete Rose Food, etc. In the spring we recommend that a top dressing of a complete fertilizer be worked into the soil. A good fertilizing rule is to feed plants at the start of Spring Summer and Autumn.

For newly planted bare rooted roses it is recommended that you don’t use pelletized animal manure for at least a few months as the fresh new roots can be burnt off and set the plant back. Water all fertilizers in well so that your plant will get the benefit and be able to absorb the fertilizer.



BLACK SPOT AND POWDERY MILDEW

These Fungal problems are the mainly occur during spring and autumn or when the weather is humid. They do not hurt the plant but is unsightly and in late autumn help aid the rose plant to go into dormancy.

Black Spot is a scattering of dark blotches on the leaves. Eventually leaves turn yellow and drop off. Powdery Mildew is a creamy white mould, which attacks the flower stems or leaves and buds of flowers. On the leaves white blotchy spots appear. The occurrence of both diseases is weather related. Black Spot thrives in humid, warm conditions.

Mildew usually occurs in the spring and autumn on mild days and cool moist nights. For the control of these diseases, spray with Triforine or any good black spot spray. During spring us these preventative spray every 7 to 14 days. Lime Sulphur can be sprayed during winter dormancy as indicated on the bottle. This will help kill all fungal problems this will give your plants a fresh clean start in spring.