I planted seedlings in April.
The kanji and the word are exactly the same. That means they share meanings as well.
Since this word is made up of a single kanji, it probably uses the kun'yomi reading. You did not learn this reading, so here's a mnemonic to help you:
The best time to plant seedlings is at night (なえ). If you plant them at night they'll sleep through the whole transplanting process and they'll wake up happy and ready to grow.