Many Australian gardens are experiencing drought conditions. Drought doesn't mean you have to put off gardening, but instead, it makes us focus on the importance of one of our most valuable resources - water. We need to use it wisely whether we are in drought or flood. Drought does make it harder for water to infiltrate through the soil, and any heavy downfalls we experience now often run straight off the surface taking precious topsoil with it. We need to overcome these problems by increasing the level of organic material in our soil to help soak up any available water. This means adding plenty of compost (home-made or purchased), manures and decaying leafmulch. All these materials will hold the water much better than soil alone. To prevent evaporation and runoff use a really thick layer of mulch. Organic sugarcane mulch, straw, grass clippings, composted sawdust and pea straw are excellent for covering gardens - and make it a layer of at least 5 cm to do the best job. That's a lot of mulch if you have large gardens, but it will dramatically reduce the need for watering. It provides a layer of insulation for the ground so the soil stays much cooler and plants will love it during the warmer months. Try to avoid inorganic mulches like rocks, pebbles or stones that don't breakdown over time. No, you don't have to replace these mulches as often, but you don't add any nutrients to your soil, nor do you help with its water holding capacity. Worms are said to increase infiltration rates by as much as 10 times, but you need to give them plenty of food to attract them. Compost and organic mulches give plenty of food source for attracting worms to your garden. Maintenance Checks Keep staking tomatoes now. Vigorous, tall growers like Grosse Lisse, Amish Paste, Oxheart or Black Russian need to be tied to some wooden stakes to do best. Tie with a piece of string just under the truss. Other "bush" varieties like Rouge de Marmande, Prosperity or Tiny Tim will only grow to around a metre so they don't need staking. If they flop over and scramble along the ground just make sure to protect the fruit from coming into contact with soil and rotting. Watch out for caterpillars from now on and use Dipel or Bt (available from nurseries) to control them. This is safer than pyrethrum; despite it being an organic remedy, pyrethrum will also kill beneficial insects too. Pile up extra soil, or compost and straw around potatoes as they grow, just make sure that the growing tip is always above the soil. Potatoes are heavy feeders so they'll need something to keep them going. A bit of compost every month keeps them going well. What to Plant Plant some long term crops now like carrots, beetroot, leek, parsley, celery, turnips and silverbeet. These will all mature over winter. Melons need a long hot season to mature, so plant now for autumn harvest. Eggplants and capsicum still prefer indoor temperatures for consistency so don't be in a hurry to plant them out yet. They come into flower quicker if slightly rootbound in smaller individual pots. Just slide them straight out of the pots and into the soil when summer hits. Encourage your climbing beans on a trellis and help them attach if they need it. Broad beans are in full swing now but become a bit top-heavy. Keep them supported together in a block with garden twine attached to posts on the corners. Replace all peas ( common, snap or snow) with beans from now on especially if they show signs of powdery mildew. The Flower Garden In cold regions it's time to tidy up the spring display and prepare for some summer annuals. Plant some sunflowers for seed for the budgie, rabbit, or guinea pig. Some plants that do well in the shade are dianthus (pinks), impatiens, pansies and violets, all can go in now for summer. Romance is in the air with the heady fragrance of gardenias, star jasmine, lavendar and roses. Plant these where you can appreciate their strong scent around patios, pools or garden retreat. Romance is often fooled by the lure of roses on Valentine's Day. Roses don't naturally flower on February 14th, but are forced with timely pruning to bring them on - that's why they're so expensive. Roses in the garden have their main flush now and then again in late autumn. To make the most of your autumn display, cut blooms on long stems thereby reducing the overall size of your bush - consider it a semi pruning. Give them another feed now and water well at the base of the plants, making sure you avoid overhead sprinkling that leads to fungal problems. You'll have another fabulous display around March or April.....and settle for a bunch of tuberoses for Valentine's Day instead!
Pest alert! Red spider mite is hard to control. Try hosing off or pyrethrum if they're bad. Natural preditors will arrive in time if you do nothing. Yellow spots on bean leaves or generally limp non-thriving bean plants indicate bean fly. Remove affected leaves and hill up soil around stems to give extra support. Do not compost. Use milk sprays for fungal problems like powdery mildew by diluting some unhomogenised organic milk with water. Keep it up every couple of days until it is controlled. Half strength bordeaux is also said to control downy mildew on grapes. Cold diluted chamomile tea is a favourite of mine for rose black spot and strawberry problems. Use it as a preventative spray once a week. Use seaweed solution to strengthen soft new growth, it won't be as easily affected by either pests or diseases. Keep a check on fruit fly and use splash baits if necessary. Make a boundary of sawdust, coffee grounds or eggshells to deep snails and slugs off garden beds. Fruit trees Check hessian traps for larvae of codling moth on apples, pears and larvea of oriental fruits fly on stonefruit. Replace with fresh traps as necessary. |
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