Answer: I don't know how successful a shrub will be interplanted with pines. Pines make it hard for other plants to grow around them; they drink most of the moisture and create a very acidic soil environment. It's best if you can space the shrubs 6-8' away from them, unless you fill in the space with more pines, such as Austrian Pine (Pinus nigra), which grows 30-50' tall.<br><br>As another option, you can transition from pines to a different kind of evergreen. A tall variety of Chinese Holly (Ilex cornuta) or Spiny Greek Juniper (Juniperus excelsa), which can both reach a height of 15', which require full sun to slight shade, may be your best bet; they are drought tolerant and require acidic soil. You can also consult with a local nursery orlandscaper, since they have knowledge of what does well locally. You'll want to maximize your investment, since it's going to cost a lot to plant a 140' hedge. Hope this helps!
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