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Yellow! [Aug. 23rd, 2006|12:13 pm]



I have a Fothergilla, a Magnolia, and a Fragrant Viburnum in my front yard here in zone 5.  It's a small yard, but none of them are adjacent to each other.  However, all of them are a bit chlorotic... especially the Fothergilla.  We haven't had too much rain, so it's unlikely to be that.  I suspect that the soil is too alkali - this tends to be a problem in our area - we have a lot of clay in Chicagoland.  I'll be doing a soil test eventually, but in the meantime, what do you think?  Are Fothergillas especially sensitive to pH?  And why are these three affected, but not the Hydrangea or the other Fragrant Viburnum that are in between?  The yews are fine too.

So, am I missing something here?  Is the soil too alkali, and we've got iron chlorosis?  If so... anybody know an organic additive for acidity?



[User Picture]From: katanadoshi
2008-08-14 02:06 am (UTC)
Your hydrangea, unlike the others, will take alkali soil without much fuss as pH for a hydrangea only determines color of the blooms, not the health of the plant. For the other's you might want to try adding things around the individual plants to correct the soil or add to the whole yard if you'd like to see what color your hydrangea will turn.
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