This use of ‘fretted’ seems to mean worn or damaged by weather, and ‘teazed’ is an old spelling of ‘teased’, here apparently meaning pulled or damaged.
I know what Dorothy means about the weeds… we have bad hair days, bad garden days, glad to know that even the Wordsworths had days when the garden was a mess.
‘The Roses in the garden are fretted & battered & quite spoiled the honey suckle though in its glory is sadly teazed. The peas are beaten down. The Scarlet Beans want sticking. The Garden is overrun with weeds.’ Monday 4th July 1802
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Source: Dorothy Wordsworth, The Grasmere and Alfoxden Journals, ed. and introduction by Pamela Woof (Oxford: Oxford World’s Classics, 2008 (2002)), p. 117