Garudapurana 3.14.21

3.14.21

māsasyānantaraṃ vīndra tvasāraṃ panasaṃ smṛtam /
ṣaṇmāsānantaraṃ vīndra kharjūraṃ tiktavatsmṛtam //

After a month, O best of birds, the jackfruit is considered devoid of essence; / after six months, O best of birds, the date is considered as if bitter.