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Giant Reed (Arundo donax)

Perennial
A. maxima.
View Images of Giant Reed (Arundo donax)
Common Name Latin Name Plant Family
Giant Reed
Arundo donax
Gramineae

Brooms are made from the terminal panicles[7].

Plants are grown alongside irrigation canals to check soil erosion[169].

The plant can be grown as a windbreak screen[1, 169]. If cut down, the culms branch and in this form the plants can be used as a hedge[236].

The leaves can be woven into mats etc, whilst the split and flattened stems are used to make screens, walls of houses etc[46, 50, 61, 84].

A yellow dye is obtained from the pollen[257].

The stems of the plant have a multitude of applications. They are used as plant supports for vines and other climbing plants[7, 169, 269] and to make clarinets, bag-pipes etc[46, 61, 103]. They are also used as pipe stems[84], for roofing[46], to make screens, walking sticks and in basketry[100, 195]. They are used to make the reeds of clarinets and organ pipes[236]. The stems can be harvested as desired at any time of the year[269].

The fibre from the stems can be used to make a good quality paper[269]. This plant is currently (1995) under investigation at Rosewarne in Cornwall as a potential commercial paper crop for small-scale industries in SW. England[K].

Because of rather high yields from natural stands, the plant has been suggested as a source of biomass for energy production[7, 269]. Dry cane yields of ca 10, 15, and 20 tonnes per hectare were reported respectively from infertile, partly fertile and fertile soils[269]. According to the phytomass files annual productivity ranges from 10 to 59 tonnes per hectare, the latter figure from Westlake’s (1963) estimate of 57 – 59 tonnes[269]. In addendum, Westlake cites evidence that Arundo donax can produce 40-75 MT/ha/yr. in warm temperate and tropical regions. Early vegetative growth has ME (metabolizable energy) of 2.22 megacalories/kg DM, while hay has an ME of only 1.37 (Gohl, 1981). Such annual productivity, if sustainable, makes this a notable energy candidate, especially when one considers the energy as a by-product, with leaf protein and potential pharmaceutical as primary products[269].

A particular type of cellulose is obtained from the plant[7]. In Italy, the plant is used in the manufacture of rayon[269].

  • Medicinal Use

    The root is diaphoretic, diuretic, emollient and galactofuge[7]. An infusion is said to stimulate menstrual discharge and diminish milk flow[240, 272]. A paste of the root is applied to the forehead to treat headaches[272]. Isolated alkaloids have been experimentally shown to raise the blood pressure and contract the intestine and uterus[240]. The rhizome or rootstock is used in the treatment of dropsy. Boiled in wine with honey, the root or rhizome has been used for treating cancer[269].

    The plant contains the alkaloid gramine. This is said to be a vasopressor, raising the blood pressure in dogs after small doses, causing a fall in larger doses[269].

    The stems have been used as splints for broken limbs[257].

  • Edible Use

    Rhizome – raw or cooked[84]. The rhizome can be dried and ground into a powder to make bread, usually in conjunction with cereal flours[7, K]. It can also be roasted or boiled[84].

    Leaves – cooked as a potherb[84]. They are very bitter[177]. The young shoots are used[177].

  • Cautionary Notes

    None known

Cultivation & Habitat

Seed – surface sow in a greenhouse in February to April. Stand the pots in about 3cm of water to keep the soil moist until the seed germinates. It usually germinates in 1 – 3 months at 15¡c[134]. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Once they are 20cm or more tall, plant them out into their permanent positions in late spring or early summer. Division in spring[1]. Whilst large divisions can be planted out direct into their permanent positions, we have found that it is best to pot the divisions up and keep them in light shade in a greenhouse until they are rooting away well. Stem cuttings, placed in water, root easily[1].
Prefers a moist fertile soil in a sunny sheltered position, preferably by water[1, 134, 200]. Tolerates a pH in the range 5.5 to 8.3. Plants can be grown as a specimen in lawns etc, succeeding in quite coarse grass[233]. Plants are succeeding in a site that is very exposed to maritime winds at Rosewarne in Cornwall[K]. Adapted to tropical, subtropical and warm temperate climates of the World, Giant reed is often found on sand dunes near seashores. It tolerates some salt. It grows best along river banks and in other wet places, and is best developed in poor sandy soil and in sunny situations. Said to tolerate all types of soils, from heavy clays to loose sands and gravelly soils. Ranging from Cool Temperate Wet through Tropical Dry to Wet Forest Life Zones, giant reed is reported to tolerate annual precipitation of 30 to 400cm, an average annual temperature range of 9 to 28.5¡C and a pH in the range of 5.0 to 8.7[269]. One report says that this plant is only hardy in the milder areas of Britain[1] whilst another report says that it is hardy to between -5 and -10¡c[200]. This contradicts with the hardiness zone rating of 6 which would make the plant hardy in most areas of Britain[200]. Plants thrive outdoors at Oxford Botanical Gardens[233] as well as at Hilliers Arboretum in Hampshire and the RHS Gardens in Surrey[K]. Extensively cultivated in S. Europe for basket making etc[50]. Plants rarely if ever flower in British gardens233]. Members of this genus are rarely if ever troubled by browsing deer[233].
S. Europe

Become ungovernable, break the chains of the matrix; grow and forage your own food and medicine.

*None of the information on this website qualifies as professional medical advice. Take only what resonates with your heart and use your own personal responsibility for what’s best for you. For more information [brackets] [000], see bibliography.

As with ALL things; Take only what resonates with your heart and higher self, and leave the rest behind.

Repository of Divination tools, News, Elements, Spells, Rituals, Clearings, Entities, Ascension; Kitty is a magpie at heart, gathering information trinkets from everywhere and sharing them here in hopes that some might shine a light on your journey in this Incarnation. Please only take what resonates with your heart and leave the rest behind. Tionscadal Mo Chroi (Project of my heart) Lovingly curated by Kitty, bean draío leabharlannaí (Librarian Witch)

  • For any question, you can cast a handful or bag of Runes and read the meaning of the runes that land face up only.
  • You may cast them into a circle (drawn with chalk or as a pattern on a cloth). Read the runes that land inside the circle AND face up.
  • If The Eye (Witches Rune) or Tiwaz (Elder Futhark) appears amongst the runes when cast, pay extra attention to where the eye is looking or Tiwaz is pointing.
  • Pro Tip: You can also use runes just as you would the Tarot, with ANY tarot spread. Simply pull one at a time from your bag to fill the layout.

*while Witches’ and Elder Futhark are different sets of runes, (just as English and Gaelic are different languages) I use mine together;  my rune casts are “bilingual”. I have made the same choice in my online rune layouts. Alainn Tarot interactive includes both sets at the same time. 

These are plants that grow in my own yard or elements that I keep in stock personally, gathered in a single category for my own quick navigation.