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<blockquote data-quote="Marguerite" data-source="post: 296623" data-attributes="member: 1991"><p>I know we're digressing on hydrangeas, but maybe you can share this info with wm, Linda.</p><p></p><p>For those who remember that pH paper (or litmus paper) turns pink in acid conditions and blue in alkaline, hydrangeas do the opposite. Acidic soils will send them blue. Alkaline soils will send them pink (even your lovely blue one, Linda).</p><p></p><p>The steel wool pads my mother buried under every second bush - iron is a metal (of course) and when it oxidises (rusts) and mixes with water, it is alkaline. It will send hydrangeas pink. You can buy crystals to send your hydrangeas blue, but have a look online, often it's something you could buy much more cheaply. Wm could also easily make his own litmus solution using red cabbage.</p><p></p><p>Because difficult child 3 is a correspondence student, the science experiments they send out to him are ones he can do in an average kitchen using what is already available. You can havea lot of fun and learn a lot. If wm is interested in gardening, he can set up experiments in what nutrients plants need. Take photos of the stages of the experiment and he should be able to earn credits (or brownie points or whatever) from his teachers.</p><p>difficult child 3 was sent some bean seeds to work with. He planted them in dry sand (we have a lot of it!). He then set up about six different pots - one was left dry, one was watered and left outside to get sunshine. One was watered but kept in the dark in the fridge. One was left dry but kept near a window indoors to get sunlight.</p><p></p><p>Another fun garden ting wm could do, is make some pots for upside down tomatoes. You can make this from a drink bottle. You cut te base off the bottle but plant the tomato in ther bottle neck. Hang the bottle upside down and water from the base. The tomato plant (or nay other plant) will develop a root system that holds it in the bottle, but it will also keep trying to grow up to the light. However, a tomator plant with tomatoes on it will hang down from the weight of the tomatoes, but not need staking (of course). It might be getting a bit late in your season to try this, unless you transplant a seedling.</p><p></p><p>There are so many fun things a kid can do (or you can do with kids) to teach as well as just enjoy.</p><p></p><p>Marg</p></blockquote><p></p>
[QUOTE="Marguerite, post: 296623, member: 1991"] I know we're digressing on hydrangeas, but maybe you can share this info with wm, Linda. For those who remember that pH paper (or litmus paper) turns pink in acid conditions and blue in alkaline, hydrangeas do the opposite. Acidic soils will send them blue. Alkaline soils will send them pink (even your lovely blue one, Linda). The steel wool pads my mother buried under every second bush - iron is a metal (of course) and when it oxidises (rusts) and mixes with water, it is alkaline. It will send hydrangeas pink. You can buy crystals to send your hydrangeas blue, but have a look online, often it's something you could buy much more cheaply. Wm could also easily make his own litmus solution using red cabbage. Because difficult child 3 is a correspondence student, the science experiments they send out to him are ones he can do in an average kitchen using what is already available. You can havea lot of fun and learn a lot. If wm is interested in gardening, he can set up experiments in what nutrients plants need. Take photos of the stages of the experiment and he should be able to earn credits (or brownie points or whatever) from his teachers. difficult child 3 was sent some bean seeds to work with. He planted them in dry sand (we have a lot of it!). He then set up about six different pots - one was left dry, one was watered and left outside to get sunshine. One was watered but kept in the dark in the fridge. One was left dry but kept near a window indoors to get sunlight. Another fun garden ting wm could do, is make some pots for upside down tomatoes. You can make this from a drink bottle. You cut te base off the bottle but plant the tomato in ther bottle neck. Hang the bottle upside down and water from the base. The tomato plant (or nay other plant) will develop a root system that holds it in the bottle, but it will also keep trying to grow up to the light. However, a tomator plant with tomatoes on it will hang down from the weight of the tomatoes, but not need staking (of course). It might be getting a bit late in your season to try this, unless you transplant a seedling. There are so many fun things a kid can do (or you can do with kids) to teach as well as just enjoy. Marg [/QUOTE]
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