Question

which part of rose plant have to protect them​

Answer 1

Answer:

graft union

Explanation:

Standard roses have their graft union near the soil line, making it easy to protect the most important part of the plant. Tree roses, however, have their graft union a few feet off the ground.

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Answer 2

ɢʀᴀғᴛ ᴜɴɪᴏɴ

sᴛᴀɴᴅᴀʀᴅ ʀᴏsᴇs ʜᴀᴠᴇ ᴛʜᴇɪʀ ɢʀᴀғᴛ ᴜɴɪᴏɴ ɴᴇᴀʀ ᴛʜᴇ sᴏɪʟ ʟɪɴᴇ, ᴍᴀᴋɪɴɢ ɪᴛ ᴇᴀsʏ ᴛᴏ ᴘʀᴏᴛᴇᴄᴛ ᴛʜᴇ ᴍᴏsᴛ ɪᴍᴘᴏʀᴛᴀɴᴛ ᴘᴀʀᴛ ᴏғ ᴛʜᴇ ᴘʟᴀɴᴛ. ᴛʀᴇᴇ ʀᴏsᴇs, ʜᴏᴡᴇᴠᴇʀ, ʜᴀᴠᴇ ᴛʜᴇɪʀ ɢʀᴀғᴛ ᴜɴɪᴏɴ ᴀ ғᴇᴡ ғᴇᴇᴛ ᴏғғ ᴛʜᴇ ɢʀᴏᴜɴᴅ.