Green Roof

Yew Dell Architecture Tour

  • The north roof slope of the greenhouse is covered with a green roof system with more than 30 types of plants. The growing mix is a 6” deep layer of sharp gravel to provide excellent drainage.
  • Green roof systems like this are extremely durable, reduce storm water runoff and reduce reflected heat.
  • The green roof was only irrigated several times during the first year of establishment. The drought tolerant sedums and other succulent plants are perfectly at home in this very dry setting.

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Share your Martha Lee’s Kitchen question here and we’ll get back to you as soon as we can.

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Share your cut flower arrangement question here and we’ll get back to you as soon as we can.

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Group Volunteer Form

To set up a group volunteering opportunity, please complete the form below. We will be in touch soon to help get you scheduled!

*Youth volunteers are age 6-17.

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We’d love to hear from you whether it’s regarding your visit, gardening questions, or sharing a horticultural fun fact!

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