{"id":2959,"date":"2019-08-02T00:08:07","date_gmt":"2019-08-02T07:08:07","guid":{"rendered":"https:\/\/depts.washington.edu\/hortlib\/pal\/pal-question-587\/"},"modified":"2023-08-08T12:49:55","modified_gmt":"2023-08-08T19:49:55","slug":"chamaecyparis-pisifera-and-flagging","status":"publish","type":"pal","link":"https:\/\/depts.washington.edu\/hortlib\/pal\/chamaecyparis-pisifera-and-flagging\/","title":{"rendered":"Chamaecyparis pisifera and flagging"},"content":{"rendered":"

Chamaecyparis pisifera ‘Boulevard’ is prone to foliage<\/strong>
\nbrowning towards the interior of the tree as it matures. What is the<\/strong>
\ncause of this and is there any remedy?<\/strong><\/p>\n

 <\/p>\n

I consulted Pacific Northwest Landscape IPM Manual<\/em> (WSU, 2002), which
\nmentions that lower branches tend to die in older Chamaecyparis pisifera.<\/em>
\nThis resource mentions cedar flagging as one of the cultural or
\nenvironmental problems which may affect this tree. It is normal for
\nevergreens to shed some old foliage every year, but this may be
\nintensified by stresses like drought, recent or poor planting, root
\ndisturbance, or hot wind. Symptoms show up in the form of browned
\nfoliage, usually most noticeable in the fall. The current year’s foliage
\nstays green at the tips. Remedies for excessive flagging would include
\nclose attention to irrigation during periods of summer drought,
\npreventing root disturbance, make sure the tree was not planted too
\ndeeply, and improve drainage if the soil tends to stay wet. (Replant onto
\na berm or raised bed, for example).<\/p>\n

Since the browning you have observed is on the interior, flagging would
\nbe a likely possibility. Typically, the dead foliage gets blown out of
\nthe plant and the plant returns to normal growth in the spring.
\nThe following link, to a discussion on University of British Columbia’s
\nBotanical Garden Forums,<\/a> may be of interest to you.<\/p>\n

If you think something else might be going on, such as Phytophthora, you
\nmight want to bring photos and samples to a Master Gardener Clinic for
\ndiagnosis. Signs of Phytophthora begin at the small roots, progressing to
\nlarger roots. The inner bark will show a brownish color. Eventually, the
\nfoliage will turn color (yellowish to bronze and finally brown). This
\ndoesn’t sound like your description, however.<\/p>\n","protected":false},"excerpt":{"rendered":"

Chamaecyparis pisifera ‘Boulevard’ is prone to foliage browning towards the interior of the tree as it matures. What is the cause of this and is there any remedy?   I consulted Pacific Northwest Landscape IPM Manual (WSU, 2002), which mentions that lower branches tend to die in older Chamaecyparis pisifera. This resource mentions cedar flagging as one of the cultural or environmental problems which may affect this tree. It is normal for evergreens to shed some old foliage every year,…<\/p>\n

Continue reading Chamaecyparis pisifera and flagging<\/span><\/a><\/div>\n","protected":false},"author":4,"featured_media":0,"menu_order":0,"template":"","keyword":[206],"class_list":["post-2959","pal","type-pal","status-publish","hentry","keyword-chamaecyparis"],"acf":[],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/pal\/2959"}],"collection":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/pal"}],"about":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/types\/pal"}],"author":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/users\/4"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/media?parent=2959"}],"wp:term":[{"taxonomy":"keyword","embeddable":true,"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/keyword?post=2959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}