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Il fiore tra le spine

Categoria: I rinvasi

In questa sezione trovate tutti gli articoli che trattano l’argomento del rinvaso dei cactus e delle piante succulente, con approfondimenti e trucchi per travasare queste piante nel migliore dei modi e senza ferirsi.

Composizioni con le succulente: come scegliere le piante e cosa è bene sapere

Lo chiarisco subito: l’argomento composizioni ha ben poco a che spartire con lo spirito di questo mio sito. Anzi, a ben vedere siamo agli antipodi: da un lato l’approccio spartano che punta a ottenere piante simili a quelle in habitat e che sta alla base del mio metodo di coltivazione; dall’altro la coltivazione ai soli fini estetici, che personalmente non pratico ma che sappiamo bene essere diffusissima. Ma la vita, si sa, non è mai tutta bianca o tutta nera, qualche sfumatura ci deve sempre essere… Così, ecco un articolo corredato da un mio video su come si realizza una semplice composizione di piante succulente. In fondo, un occhio all’estetica non guasta mai e anch’io, che amo le piante “vissute”, simili a quelle in natura, non disdegno una composizione ben fatta, purché senza fronzoli e realizzata nel rispetto delle esigenze delle singole piante. Attenzione: il tema può sembrare scontato e la materia molto semplice, ma non è così e ne capiremo le ragioni nelle prossime righe. (…)

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Plastica, terracotta, quadrati o tondi? Come scegliere i vasi per i cactus e le succulente

Di plastica o in terracotta? Rotondo, quadrato, basso o profondo? E ancora: meglio una sola pianta per vaso o più piante in un’unica cassetta o in un’ampia ciotola? A prima vista l’argomento può sembrare banale, ma la scelta del vaso corretto per la coltivazione di cactus e piante succulente ha un’innegabile incidenza sull’esito della coltivazione. La scelta del vaso, si può dire, è anzi strettamente connessa al tipo di coltivazione che adottiamo per le nostre piante (in casa, su un balcone, in serra, in piena aria, ecc.) e ai vari elementi che la caratterizzano, come annaffiature, tipo di substrato, esposizione, temperature, e molto altro ancora.

Vediamo allora in questo articolo, al netto di scelte prettamente estetiche e quindi personali, come scegliere i giusti contenitori per la coltivazione delle succulente, valutando pro e contro delle varie forme e dei vari materiali con cui sono realizzati i vasi reperibili in commercio. (…)

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Rinvasare i cactus in inverno: ecco perché e quali sono i vantaggi di questa scelta

Premesso che è possibile rinvasare cactus e piante succulente in quasi tutti i mesi dell’anno, da più di quindici anni effettuo questa operazione durante l’inverno, tra dicembre e febbraio. All’occorrenza, ad esempio in caso di pianta in sofferenza o nuovo acquisto, rinvaso anche in primavera o in piena estate.

Non rinvaso quasi mai in autunno, perché in questo periodo le piante cominciano a rallentare la crescita per avviarsi alla stasi invernale e preferisco evitare di “disturbare” questo processo naturale, dal momento che per una pianta un rinvaso è comunque sempre un piccolo trauma.

Esaminiamo i vantaggi del rinvaso di cactus e succulente durante l’inverno nell’articolo che segue. (…)

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Cactus e rinvasi: il classico mix pomice, lapillo, torba (poca) per velocizzare la crescita

In genere comincio i rinvasi da metà dicembre in avanti, per terminare entro i primi mesi del nuovo anno. Quest’anno, considerato il numero di piante da mia semina che necessitano di un rinvaso (gli “esuberi” che ogni tanto cedo ad amici o conoscenti), ho cominciato con largo anticipo. Nonostante le temperature ancora alte per il periodo, infatti, le piante sono già in stasi e si può procedere a travasare senza problemi. Il periodo del rinvaso è uno degli argomenti più dibattuti, insieme alla composizione dei terricci di coltivazione: c’è chi travasa solo piante in vegetazione, chi solo in primavera, chi durante l’inverno e chi travasa in qualsiasi periodo dell’anno.

Diciamo che non c’è una regola fissa: io stesso, nel corso degli anni, ho rinvasato praticamente in tutte le stagioni, a seconda delle esigenze, e non ho mai riscontrato problemi. L’importante è attenersi a quell’unico accorgimento davvero utile che è quello di evitare di annaffiare subito dopo il rinvaso. Occorre dare alle radici danneggiate o tagliate durante il rinvaso il tempo di cicatrizzare in terriccio asciutto, così da evitare il rischio che possano innescarsi marciumi.

Il resto è questione di scelte. Personalmente preferisco travasare e cambiare terra alle piante durante la stagione invernale, o comunque quando i cactus e le succulente sono in stasi vegetativa, ad esempio appena prima della primavera, così che tra il rinvaso e la prima annaffiatura intercorrano diverse settimane. Da anni seguo questa “regola” e non ho mai avuto problemi. Certo, può capitare che qualche pianta faccia fatica a ripartire dopo un rinvaso, al punto da restare bloccata anche per un anno intero, ma questo può succedere rinvasando in qualsiasi periodo. Non dimentichiamo che per le piante il rinvaso è in ogni caso uno “stress” non da poco. Anche per questo prediligo l’inverno, quando le cactacee sono a riposo e gli effetti del rinvaso sono meno “traumatici”.

Approfondiamo il tema dei rinvasi e dei substrati per cactus, in particolare del terriccio “standard” a base di pomice, lapillo e torba in parti uguali, nell’articolo che segue.

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Rinvasare i cactus: qualche consiglio su come farlo al meglio senza… donare il sangue!

Rinvasare i cactus: già l’espressione può far storcere il naso. Il rinvaso, in effetti, è spesso una delle ragioni per le quali molti si tengono alla larga dai cactus. Magari la pianta piace, ma l’idea che prima o poi debba essere travasata, con tutte quelle spine, spaventa chi è alle prime armi o non conosce ancora bene queste piante. In molti decidono addirittura di lasciar perdere le cactacee per dedicarsi alle succulente a foglia, decisamente meno ostiche da affrontare durante un rinvaso.

In realtà, anche piante particolarmente spinose come Echinocactus grusonii o Ferocactus non sono così difficili da rinvasare. Qualche accortezza, un po’ di esperienza e qualche “trucco” e se ne esce senza dover letteralmente “donare il sangue”.

Vediamo, qui di seguito, come procedere e tutto quello che c’è da sapere sui rinvasi, in particolare quelli più impegnativi a causa delle dimensioni della pianta e della presenza di spine sul fusto.

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