| 31. | In general, acidic soil, produces blue blossoms, while alkaline soil yields pink and red ones.
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| 32. | Do these irises require an acid or alkaline soil?
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| 33. | When this acid reacts with alkaline soil, a neutral organic salt, calcium tannate, is formed.
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| 34. | It is adapted to alkaline soils and full sunlight.
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| 35. | Chlorosis can occur on very alkaline soils, though otherwise its pH tolerance is quite high.
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| 36. | It grows well in neutral or slightly alkaline soils that are moist and well drained.
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| 37. | They are best in a more alkaline soil.
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| 38. | It can tolerate slightly alkaline soils and rich soils in respect of organic matter and nitrogen.
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| 39. | Highbury Wood overlies mostly alkaline soils and contains a range of woodland species such as Lime.
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| 40. | It prefers alkaline soil, and dislikes winter wetness.
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