BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Root & Wire//Care calendar//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Hawthorn bonsai care BEGIN:VEVENT UID:rw-care-hawthorn-jan@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20260101 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: January DESCRIPTION:Dormant and bare. Keep the pot out of standing water and\, in a prolonged hard freeze\, under cover. Water only when the soil is dry below the surface. The bare tree can be studied and lightly pruned for s tructure while every twig is visible. Basis (rhs): RHS: Crataegus monogy na plant page (H7)\; RHS advice: overwintering plants in containers http s://rootandwire.com/bonsai/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-feb@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20260201 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: February DESCRIPTION:Still dormant. Finish structural pruning of unwanted branches . Check and remove old wire. Have soil ready for repotting next month. B asis (practice): general bonsai practice: winter structural pruning of d eciduous trees https://rootandwire.com/bonsai/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-mar@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20260301 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: March DESCRIPTION:Repot as the buds swell\, every two or three years\, removing no more than a third of the roots\; hawthorn roots are coarse and slow to recover\, so be gentle with a collected tree. Set it in an open mix a nd shelter it from frost and wind for three to four weeks. Do not feed a freshly repotted tree until it is in leaf. Basis (reference): Harry Har rington\, bonsai4me.com: Crataegus species guide (repotting\, root sensi tivity of collected trees) https://rootandwire.com/bonsai/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-apr@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20260401 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: April DESCRIPTION:Leaves open\, often late in the month. Begin a balanced feed once the tree is in leaf. Water as the surface dries. Watch for aphids o n the new growth. Basis (practice): general bonsai practice: feeding fro m leaf-out\; RHS advice: aphids https://rootandwire.com/bonsai/care/hawt horn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-may@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20260501 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: May DESCRIPTION:Flowering\, on trees old enough. Let the shoots extend\; do n ot prune during flowering. Water daily in dry weather and feed fortnight ly. After the flowers fade\, cut extending shoots back to two or three l eaves\, keeping the short spurs that flowered. Basis (reference): Bonsai Empire: Hawthorn bonsai care guide (prune after flowering\; flowers on old wood)\; RHS: Crataegus monogyna (flowering in May) https://rootandwi re.com/bonsai/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-jun@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20260601 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: June DESCRIPTION:Continue cutting back extending shoots to two or three leaves as they reach six to eight. Wire young shoots that have hardened slight ly\; older wood snaps\, so shape by pruning. Water daily and feed fortni ghtly. Look for caterpillars and leaf spot. Basis (reference): Harry Har rington\, bonsai4me.com: Crataegus (brittle wood\; clip-and-grow)\; gene ral practice https://rootandwire.com/bonsai/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-jul@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20260701 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: July DESCRIPTION:Water daily\, more in heat\; hawthorn in a small pot dries fa st and drops leaves when stressed. Feed at half strength. Light pruning of strong shoots only. Keep in full sun for next year's flower buds to f orm. Basis (practice): general bonsai practice\; RHS advice: watering co ntainer plants https://rootandwire.com/bonsai/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-aug@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20260801 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: August DESCRIPTION:Keep watering and feeding. Stop pruning by the end of the mon th so the tree can ripen its wood and set flower buds on the spurs. Thin any dense inner growth so light reaches the trunk. Basis (practice): ge neral bonsai practice: stop pruning late summer for flower bud formation on spur-flowering trees https://rootandwire.com/bonsai/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-sep@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20260901 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: September DESCRIPTION:Change to a low-nitrogen feed. Water as needed. Haws colour o n a fruiting tree\; leave them for the colour\, though removing most of a heavy crop spares a small tree the effort. Basis (practice): general b onsai practice: autumn feeding\; thinning fruit on small trees https://r ootandwire.com/bonsai/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-oct@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20261001 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: October DESCRIPTION:Leaves turn and fall. Stop feeding. Reduce watering. Clear fa llen leaves off the soil to discourage fungus. Check for fireblight symp toms before the tree goes bare. Basis (rhs): RHS advice: fireblight (sym ptoms\, hygiene)\; general autumn practice https://rootandwire.com/bonsa i/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-nov@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20261101 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: November DESCRIPTION:Bare. Prune and wire in detail now that the structure is visi ble\, remembering that only young shoots bend. Water sparingly. Move an exposed tree to shelter before the first hard frosts. Basis (reference): Peter Chan\, Bonsai Masterclass (winter work on deciduous trees)\; gene ral practice https://rootandwire.com/bonsai/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT BEGIN:VEVENT UID:rw-care-hawthorn-dec@rootandwire.com DTSTAMP:20261102T000000Z DTSTART;VALUE=DATE:20261201 RRULE:FREQ=YEARLY SUMMARY:Hawthorn: December DESCRIPTION:Dormant. Keep the root ball from freezing solid for days by m oving the pot under cover in a hard freeze\; do not water a frozen pot. Otherwise leave the tree in the open\; hawthorn needs the cold. Basis (r hs): RHS advice: protecting plants from frost\; Crataegus monogyna H7 ht tps://rootandwire.com/bonsai/care/hawthorn/ URL:https://rootandwire.com/bonsai/care/hawthorn/ END:VEVENT END:VCALENDAR