Garden Problems

Press, Volume CIII, Issue 30561, 2 October 1964, Page 6

Garden Problems

Would yow Inform me whether e cross pollinator Is advisable for a Purple King plum. I have a nectarine in the garden. Would this serve the purpose if one Is necessary?—R.H. (Christchurch). Although the fertility requirements of Purple King have not yet been fully ascertained a pollinator would be advisable. One of the following is suggested: Doris. October Purple Alpha or even the cherry plum. A nectarine would noi be suitable. Could you tell me how to ' blue hydrangees? They are quite large bushes and have been growing in my garden for a number of years. When planted the flowers were blue and continued so for a number of years, but now they seem to be changing to mauve-pink.— “Bluey” (Christchurch). Treatment should begin In the spring although application at this time of the year may not have the desired results this year. There are a number of blueing agents on the market which can be used successfully. Alternatively use alum at between four and eight pounds a bush, depending on size. Spread out evenly over the spread of the roots. Could you Identify the worms infesting the enclosed soil sample and say how they can be controlled? Last summer the ground was dressed with sheep manure and mulched with lawn clippings. Lettuce planted in July is failing to heart and the lower leaves are turning brown.— T.H.L. (Kaiapoi). The worms are a species of earthworm undoubtedly attracted by the organic matter in your soil. Although their numbers seem unusually great their presence will do only good and they in no way interfere with normal plant growth. Browning of over wintered lettuce is a common disease symptom, but it is difficult to advise whether remedial measures and a side dressing of nitrate of soda are worth applying without seeing the crop.

Some years ago I saw a bowling green In the North Island which had been sown down with mercury bay weed and it appeared to be most satisfactory. I have a lawn which has been newly sown and another which has been down for some years and I would like to oversow them with mercury bay weed. Could you tell me how long It takes for the mercury bay weed to choke out the other plants and if it is likely to be invasive once established?—"lnquirer” (Fendalton). It IS impossible to say how long it would take for mercury bay weed to establish itself fully in your lawn as there are so many influencing factors to take into consideration. However, unless soil is sufficiently moisture-retentive or if regular watering is not maintained during the dryer months, it is not worth attempting to establish this type of lawn. Tomatoes Plant tomatoes in unheated glasshouses and water carefully until established. Those planted last month should be provided with support. Take out side shoots as soon as they can be removed without causing damage. A light overhead spray about midday will help in the set of fruit. Established plants should be kept well supplied with water.

Spring Competition.—The Christchurch Beautifying Association will hold its spring garden competition oh October 18. All gardens will be judged from the street. Details of . entry, which is free, can be obtained from Mr E. W. Rodgers (telephone 527-301), or Mr R. Proctor (529-828 or 528-942).